I have not heard about them. The coating looks pretty at least. Their product goes on very thin, so it can't provide much thermal insulation. White Lightning goes on relatively thick, 15 thousandths vs about 2 thousandths for the others.
For the record: You would use MotoWheels source for their coating, vs. you sending your items to MotoWheels, to send off to another place.I will also look into Motowheels as well. I just want to find something that works.
Jet Hot has a location in PA that you might look at. They also have dealers at a bunch of locations. Thier web site could be easier to navigate.
HPC, which Motowheels uses, is recognized as one of the leaders in several types of coatings including friction reduction and temperature control. That they look awesome does not mean they are all show, no go. The biggest benefit is in the materials they use, and the performance gains you can realize.
EDIT: Like Dirkwright mentioned, Swaintech also has a very good reputation.
Advice: before you send anything to any of these companies, talk it through with them first. Understand what you're looking for, and talk with thei reps about which product is best for you. Each of these companies offers a variety of coatings, and not every coating is right for each application. That sounds pretty elementary, but you'd be surprised at how often people are dissatisfied because they did not talk through the process first. Just my $.02