I installed them fall of 10'. They were a easy install and work pretty good. However somehow in between testing them before install and after install the "brain" went bad. They were replaced free under warranty, but still a pain. I read some bad things about the controllers going bad on them(of coarse after I bought them....) but so far they have been good.
The only thing I would say is that when you install them:
There is a big connector plug that connects the "brain" to the controller. I have this plug hidden down under my tank along the frame. The grips stopped working this year(of course in cold March) and I couldn't figure out why. The plug had come undone. When I found it and repaired it I wrapped the connection in duct tape to help give it a better hold. Seems to be working.
Givi racks with V35 sides, and V46 Top-case, Garmin Zumo 450 GPS, Powermadd Handguards, Motowerks GPS Mount, Peg Lowering kit, Flat Foot, Arrow Exhaust, Adjustable Levers, GIPro Gear Indicator, Oxford Heated Grips