I shopped around a lot and personally tested bluetooth headphones in a few brick & mortar stores prior to ordering these. They a GREAT deal. They sound fantastic, seem very sturdy and connect with no problems. The battery life seems to be the same as advertised although I'm not sure that I've completely drained them yet.
To get a little more technical, while I ordered these mainly to listen to podcasts and for some casual music listening, I have to say that they seem to have a fairly flat response (which is good) without under-representing the bass. I really don't like cans that are hyped whether in the lows or the highs (I hate Beats and think they're a scam). They sound so good that I've actually been using them to listen to music more than I'd planned to. They are also quite comfortable.
Before I came across these, I'd resigned myself to probably needing to spend around $300 to get something that wasn't crap but I honestly think that these cans sound better than the Bowers & Wilkins P5 or the Plantronics Backbeat Sense, which were the other two I was considering.