I make a few buys from Unity Electronics each year.
It is a excellent reseller. Refurbished products are uneven. In my experience, they work well but they look used. Insofar as looks go, I do not find Unity to be a reliable reseller of refurbished computer systems.
I discovered, however, that refurbished items Unity auctions on eBay tend to be class A refurbished looking as well as class A working order. I also pay significantly less for a mobile computing system from Unity that I buy from an eBay auction.
This puzzled me until, I considered the difference between selling to buyers from a online store and selling from eBay, where buyers get to leave feedback. Too bad buyers do not demand that online resellers have an independent feedback program link on their sites!
eBay is marketing PayPal across the Internet. They should try marketing their feedback system as well!