Wonderful product and even better service! We originally purchased a LJ Hutchen Bb Clarinet as a student clarinet for my high school daughter. I based the purchase from the good Amazon reviews for the product and Hyson Music. This was a great decision. We've had it for about a year and half and did minimal maintenance on it (we tightened a few loose screws). One day, my daughter came to me and said that it was no longer putting out the proper notes and that it seemed like there was a leak somewhere. I immediately contacted Hyson Music and asked them what I should do. They generously invited me to send it back to them for repair. I sent it out the next day with just a copy of the e-mail correspondence we exchanged. Within a couple of weeks, it arrived back to us in perfect working condition and at no cost to us!
I can't recommend this company enough and will be referring them to anyone else who is in need of a great product with great support!