This kit was half the cost and extremely better than the previous product I have bought locally. Heat is fast and controllable. The mounting inside the handlebar tube protects the components from damage and there is no "slipping grip" problem that I've experienced with other handlebar heaters.
This is the snowmobile version, without the high low option, so be aware of that. I mounted this on a motorcycle, but added a digital thermostat instead of the switch to control the heat output. It works better then I imagined, and I am thrilled with the setup. If you arent building or buying a digital thermostat, you want the other version of this, the one with the high/low switch.
But this unit with a smart thermostat (no switch to install, less wiring fussing, no relay headaches) is a really slick solution... it just gets warm when it gets cold, and is invisible the rest of the time.
Pros-I love this design since it goes inside the bars and lets you use whatever grips you want. Provides good heat. Good value, fair price.
Con- Comes with cheesy cheap switch, it works though. A lower (rocker) style switch would make more sense. If your not mechanically or electrically inclined, it's a little more work then installing heated grips.