Originally Posted by monstead

Scala owner and fan. Started with the Q2's and now have upgraded to the newer G4's - mainly because of the better range and the "stereo" speakers. They have great range if you're using them for bike to bike (not the mile like they say...but markedly better than the Q2's), and they are easy to install (Arai ff & 3/4, KJC ff, Schuberth C3 modular. Excellent battery life (all day). Rain-resistent.

The G4's have been more stable than the q2's in my experience. We used the Q2's for about 1-1/2 years and probably used them on about 10k miles worth of riding. I got the G4's last May and probably have about 5k worth of use on them. The G4 is easier to operate with gloves on (buttons easier to find) and I've had almost zero issues with them staying synced. When I'm not riding with my riding buddy or other people who have Scalas...I wear mine when I want to use my Zumo...that way I can hear the directions. I also have my iPhone synched through the Zumo so I can hear/use the phone through my headset. I rarely use the phone because of the safety factor, but have on occasion.

I have no reservations about recommending the Scala G4. The Q2 was a nice unit as well, but more finicky and not always a consistent performer as far as staying synced. Other Q2 issue we ran into pretty consistently was when I wanted to sync up with a 3rd biker (brother and his wife and a couple of friends have them as well). It was always a PITA and didn't often work...although it could have been "user error".

One bit of advice...it's a good idea to keep the manual or at least copy of the important pages of the manual on your bike. That way, if something goes wrong...you can troubleshoot then and there.