Ordered on Sunday January 27, 2008 with some hesitation after reading the negative reviews here. They did charge my credit card immediately and did not send me a confirming email so I did start to get concerned.  
 
I checked back on their website on the 29th and found that the order had already been shipped, via Fedex ground, from Phoenix! I'm in NC and received the package on February 1, 2008.  
 
All in all, I'm very pleased.

I ordered a set of tire from Costco online on Jan 7, but I received a notification Email on Jan 9 that it showed "our system incorrectly applied this promotion, we need to charge your credit card for the amount that was incorrectly discounted, If you no longer wish to receive the tires you ordered, you may request a cancellation and refund on your original order by replying to this email". It will not be good choice for me while re-charge the so-called incorrectly discounted, so I replied email to cancel this order right away. I did not received any response, but they charged me next day. I sent 2 email to them on next 10 days, I received nothing. meanwhile I keep to call them, finally, one lady help me to cancel this order, but I did not get refund on my credit card. almost two weeks over, I still need to work on this problem. I am very unhappy because I could not get any response from their online service.  
 
I am a member more than 4 years. I ordered online before, I got what I want. for my experience, shoping costco online was easy, delivery was acceptable,but their online service is the worst I had met. You will never expect they will answer you. you must keep call them, forget about email or online for them at that time. I hope you are lucky!

The absolute worst online shopping experience I have had, from start to finish. Ordered two like items on 11/27/2007. They shipped one. Online status showed "partially filled" for order. Phone status said "complete", but then said only one shipped. Two separate credit card charges, one for each item. Emails sent to customer service went unanswered for a month (their email system is awful, making you jump through numerous hoops just to have your email go through to them!). When I did finally receive an email response, it was just a cookie cutter response saying to check online status. Called and after holding for a half hour got through to a "live" person. Was told that they didn't know what happened and couldn't get an answer right away as they would have to call their supplier. (Costco online is pretty much nothing but a drop shipper...which allows them to easily pass the buck when something goes awry.) Was told they would issue credit. Asked the rep if they would be sending confirmation of the credit and she said that it wouldn't be sent until the credit went through -- in 7 to 10 days! By now, my faith that they were actually going to follow through was pretty much non-existent...which has proven to be spot-on as I have still not seen the credit and it has been 11 days. Next step, charge-back. I've never had to do that with anyone, but I should've done it to begin with in this case. A lot of wasted time. Never again.

Placed order on 12/10. On 12/18, received a cancellation notice: "This cancellation occurred at your request, or due to some type of informational error (such as an invalid address, invalid credit card number, or some other incomplete or incorrect data)."  
I checked the addresses, called the credit card company, and everything checks out. Send Costco customer service an email requesting exact reason for cancellation, and the next day I receive this email: "We regret to inform you that we are unable to ship this item, due to the item currently being out of stock."  
First, Costco Online allowed me to place an order on an item they may or may not be able to deliver. Second, the order is in "Process" for a week. Third, they simply cancel the order, saying initially it may be my fault (wrong info).  
Unlike their stores, this online operation leaves much to be desired.  

Costco online is a disaster! I would never order anything from them again. I ordered a watch for my son for Xmas on 12/5. It was shipped to the wrong address, shipped back to Costco, and I have been unable to reach anyone in Customer Service because the line has been busy for two days.

As with the other raters posting on here, Costco.com online is a whole different ballgame then the actual store. They do not ship orders for 11 to 14 days after being placed online. This is a bit extreme, since most of the big companies online ship within a day or 2. I even called to see if I could cancel the order and they said that it takes 2-3 days to cancel the order because a different department handles that and the item might ship before that department gets a chance to talk to the other department. So they have my money and I can't order it elsewhere and I have no product and no guarantee on shipping or the ability to cancel. I will never order from them online again. They can't compete with other online retailers like Newegg.com, who ships same day.  
 
Update-- 10 days later and the item still hasn't shipped yet. Order status shows as in process on their website.

This review was modified by its author, jpatrickm, on 12/12/07 2:58 PM.

I ordered a NUVI 650 GPS. I'm blown away by how fast I got it! The shipping was about $8, I like free, but the speed that it came I would say it's worth $8. If there was an option for slower delivery but free S&H I would have taken that.  
 
Additionally, the packaging came very secure and it was what I ordered.

This is a tricky review because costco online is really a problem, very long time on phone hold time (30 min +)& shipping via UPS increased the problem. However the Costco store is a dream

I usually buy at the store, but they had this special on a 42" LCD that I could only buy online. Overall, I was impressed, fast shipping, great pricing, shipping prices were reasonble.  
Overall good experience. I like buying from them online just as much as in the store!

I love Costco.  
 
Just purchased memory for my Dell PC. Great prace. Quick shipping. Flawless install.  
 
My wife teases me that I could live at costco. Probably true.  
 
Recent pruchases, Panasonic dvc camcorder, Visio 32" TV, JBL NR Headphones.  
 

I ordered a new speaker set, the JBL Creature II, white. It came 7 days after I ordered it with the most basic shipping. The packaging was pretty good and the product came as described. I had no problems with Costco.com, but use judgment, as others have not had the same experience as me.

I ordered a Canon A570IS from Costco.Com. It arrived fairly quickly considering the labor day holiday and I have no complaints. No problems at all.

DO NOT ORDER ONLINE FROM THEM AND EXPECT TO GET YOUR ORDER IN A TIMELY MANNER!!!! Customer service takes 10-15 minutes, which you have to call if you haven't received your order, and they don't always provide a tracking number. Plus, they REFUSE to refund your order if they failed to ship it to you when they promised. Instead, you have to wait and, if you still don't receive your order a week after the date they told you they'd ship it, you have to call again, be put on hold again, in order to receive a rebate. Don't use Costco.com if you actually want to receive your order quickly, even if they promise a next day delivery!!!! Order from Amazon instead!!!!

I think I can summarize what the general review knowledge is about Costco. Most people would agree Costco as a storefront is great. They are honest about what they are selling you, and they have a great return policy.  
 
Online, Costco.com is a very different story. I ordered 2 LCD tv's on July 5th. It is July 21st today, and they haven't shipped yet. To call their customer service, you end up having a wait time of about 15-25 minutes usually.  
 
Today is the fifth time I've called. The first 2 times were within 10 business days of the purchase (the first two weeks from order date), at which point they neglected to do anything about checking the status of the order. Instead, they said "Don't worry, you'll get it soon. If it's not there within 10 business days then call us."  
 
So then I called again, to hear that "they will look into it." They told me they have filed a notice to the "resolution department." I asked to speak to the resolution department; they don't have a number. I asked to speak to a supervisor; they don't speak to customers. I was told I would hear back within 24-48 hours, and naturally, I did not.  
 
Two days later, I called again. This time, they put me on the phone with a supervisor - Aris Garcia - who gave me standard customer service talk about how they understand my concern, they're doing everything they can, etc etc etc... He told me he would personally look into it, having "sent an email to the shipper." He would call, but I had called after 5 PM EST, so he couldn't. He told me that he was out the next day (a Friday), and that he would personally call me Saturday. I told him instead to have the supervisor for Friday call me personally on Friday.  
 
Naturally, no call. So I call at 4:30PM, hoping to reach someone who can call before 5 PM. I get through at 4:55 and ask for a supervisor. I'm put on hold for 2 minutes, none are available. I ask them to call the shipper. She puts me on hold for another 2 minutes, comes back and says actually I talked to a supervisor your order shipped out today, so you should get a confirmation tonight or tomorrow morning.  
 
We'll see. I'll update as it happens, but regardless, the main lesson is this:  
 
If you're ordering from Costco.com, beware that IF THERE ARE PROBLEMS, IT WILL BE NEAR IMPOSSIBLE TO EITHER FIX IT OR GET A REFUND.

After reading some negative reviews for Costco on-line, I was prepared to be disappointed when I ordered the king Fusion bedroom set with "White Glove Delivery". Fortunately, everything turned out great.  
 
I ordered the set on-line and then received notice 5 days later that it had started its way cross country from CA to PA. It would take approximately 1-2 weeks to arrive. At this point we're already way ahead of the est. 4-6 week arrival quote. I'm thrilled to say the least.  
 
2 weeks later I get a call from the delivery company letting me know that the 4th of July holiday has pushed back things a few days, but my shipment would come in on July 9th. We just happened to be moving in to our new home on the 6th, so this worked out perfectly.  
 
Friday I get another call confirming the date and then Monday I got a call from the driver to let me know that they're on the way- they got here at 10am and were done at 10:45. The cable guy was actually here longer than the delivery guys.  
 
In part and overall, the service was excellent and well worth the cost. I highly recommend Costco's on-line services in regards to furniture.