Its stylist, great for women (because it doesn't interfer with your earrings), doesn't make you look like you are from another planet.  However, its got some bugs.  First, there is a delay when answering an in-coming call.  Second, when I first paired it to my Treo 650 it caused the phone to freeze.  Finally (and most critical), the hook for the ear piece kept coming off and after several times of trying to put the hook back the plastic connector broke.  Unfortunately, I cannot find anything about replacement parts.  As a result, I will probably have to return the entire headset.