I can give you an idea of what it's like to have the Tourmaster heated full-sleeve vest and gloves.
VEST:
They do a good job trying to make the thing cling to you, by having elastic panels along the sides. I'm a skinny little bastard so it still lets in some air, but that's my fault really, not theirs - anyone over 140lbs will be fine, it will cling to you. The controller is easy to use, with big buttons and a belt/pocket clip. I ran a fused lead off the battery then under the gas tank to pop out right on the left side of the base of the tank where the seat hits it, by my left thigh. It tucks in nicely when not in use and is invisible. The heat is really, really hot on my arms, because the arms of my jacket are tighter than the body. That said, I almost NEVER use more than the Low setting. It's hot as hell. Maybe Medium for 2 miles, then Low or Off for the rest of the trip. That part's not perfect, but at least it works.
GLOVES:
They're not much fun to plug in, at all. I find myself avoiding them in all but the nastiest weather because of it. It's a lot of work. And once you do, they don't heat as well as the vest. They are about 1/2 as warm as it is... it's not subtle, it's noticeable. So the vest will be broiling you on Low, while the gloves are slightly warmer than normal gloves. But the blood going down your forearms is so hot from the vest that it heats your hands well anyway, so a lot of times I go with medium or even light gloves and the vest on low or medium. It works.
Overall it wasn't money wasted, but the vest is better than those gloves.