I've been using mine for about a month and I like it.  The sound quality is high, both sending and receiving.  It came with three ear bud covers, the smallest of which is the best fit for me.  However, even that one is still a bit too large for me and I find that I occasionally need to readjust the ear piece during a conversation (otherwise I'd give this 5 stars).  I find that the controls are too small for my hands, and so I do not attempt to use them while wearing the headset.