Summary: I used this with a blackberry HS-655+ and i get about 5 feet of decent reception, which is probably all you can expect from bluetooth. For what its worth i probably would have been better off just getting a wired headset.
Pros: Works well, supports encryption, great for secure VOIP, windows picks it up as an audio device which is critical if you want to do VOIP.
Cons: This causes interference with my speakers which causes them to emit a high pitch beep that goes on and off for 10 seconds at a time. I guess ill just have to plug it in when i need it.