I bought this several months ago when I purchased a new Blackberry 7100. Although the sound quality is somewhat marginal I was quite happy with the design and willing to put up with lower sound quality for the compact wireless design. Unfortunately, after two weeks the plastic on the inside of the boom mic started to break off. I noticed that simply opening the boom would catch part of the plastic on the hinge, causing the plastic to bend and eventually break. After a few more months all of the plastic on the inside of the boom was gone. A couple of weeks later the unit stopped working completely.As others have noted, the belt case clip is poorly designed and frequently slips off. I "lost" the headset several times. Once I had to run back into a theater and search under seats in the dark to find it.The headset comes with a very compact charger, but not a car charger. I would often run the battery low and have to revert back to a good ole wired headset.There is really no excuse for the quality and belt clip problems, especially with the high price of the unit. It is too bad too, because it really is a very nice design idea. Motorolla just needs to improve the quality of the sound and construction.