Pros:- The 10S is easy to mount on the helmet. You can mount it in about 15 minutes.- It has a very secure clamp for the unit itself and velcro sticky pads for the mike and speakers.- The speakers sound very clear even at high speeds. There is no problem understanding what the other person is saying.- Pairing is easy with other headsets as well as with a phone.- You can talk to up to three other people simultaneously or individually (but I haven't tested this as I only have 2 units)- Once you pair your phone, you can use Google Now (or Siri, I suppose) to get directions, place calls, play music, etc. And it works great!- The unit has phone number presets, but Google Now is much easier to use.- There is a built-in FM radio with presets.- Battery life seems good. I've been using it with a single charge all this week (˜5 hours).- Range is pretty decent.Cons:- You might have to reposition the speakers a few times until you get them to a comfortable position. They can keep your ears from "unfolding" into the ear wells.- The velcro bond is stronger than the glue they used to attach the back piece of the mike and speakers. If you are not careful, the back will be ripped out of the speaker or mike.- If you have to reposition a velcro pad it will probably break. The kit has spare microphone pads, but no spare speaker pads so you might have to buy a set separately.Other:- They come with firmware 1.0, but updating to 1.1 was pretty simple (you need a Mac or PC).- The phone app is convenient for setting some preferences and looking at the documentation on the go, but it's not really necessary.