I installed them myself. Just plug in the wires but I had a tough time locating the wires behind the radiator. Its a nice setup once installed. Seems like my throttle grip runs hotter than my left grip for some reason. Its also easy to change the heat settings during a ride.
Throttle sides run hotter because of the insulating throttle sleeve. The trick is to insulate the other side and perhaps use a bigger throttle side grip on the left as well. Some people use duct take, a couple layers for the insulator.