The Scala 500 was easy to set-up and get communicating with my RAZR cell phone, It's works very well, occasionally dropping connection when not in use (I believe due to the phone side of the connection). Typically reconnects easily from the phone bluetooth menu to re-establish connection. It has some minor speaker vibration when set to higher volume levels to overcome vehicle road noise ect, but will adust to high volume levels when needed. My voice commands seem to work just as well with the headset as without, for dialing etc. The duration of the battery charge does seem to be pretty much as specified, I only have to charge it about once a week or less at the level I use it, which gives me a tremendous amount of stand-by time.Over-all I rate this Headset very high, and do not feel the least bit let down from my initial expectations.