I bought one of these a couple of months ago to pair up with a new Garmin Zumo 390LM, a new flip-up helmet and my iPhone 6. Since installing the Sena SMH 5 I have used it for a few day rides and the annual FL-STOC event last month (November, 2014). I bought the SMH 5 because I typically have no need to use a bike-to-bike intercom, so its 400 meter range was not an issue for me. I set the Sena up so it is paired to my Zumo, for voice directions only, and to my iPhone 6 for music and phone calls. Yes, I know, I do lose a few Zumo phone features by not pairing the phone to the Zumo, but if I did that I found I could not play music from my iPhone. The way I have it set up is (so far) perfect for me. When I turn the Sena on it automatically pairs with the Zumo (when the Zumo is on) and my iPhone (my iPhone is always on. LOL) within just a few seconds and the Sena tells me it has paired with each device. I can start music just by pushing one button on the Sena that brings up Siri on the iPhone and I can voice select music, play lists, etc., very easily. If music is playing and the Zumo needs to give me voice turn directions the music automatically pauses, the voice directions come through, then the music starts back up. If I receive a phone call, I can answer it by pushing one button on the Sena or simply just say, "Hello". If I want to place a phone call, again, I just press one button on the Sena to bring up Siri and tell her who I want to call and the iPhone places the call. The speaker quality is actually very good to my old ears, even at 70+ MPH and to my amazement people I have talked to on the phone, even while at speed, said my voice comes through loud and clear with NO wind noise! The Sena is very simple and easy to operate, even with riding gloves on. The internal rechargable battery seems to last for quite a while and can be charged "on the go" if necessary. So far, anyway, I am very happy with the Sena SMH 5 and my setup. I love the Bluetooth and freedom from the hard-wires that I used with my old 2720 and I have to admit, playing music while riding makes a ride a bit more enjoyable sometimes and I think, even a bit less fatiguing on longer rides.