I bought some... it's not a true ceramic in my opinion. It does what it shows you in their videos and it does last for a while. Goes on easy, and is a good in between protectant, that is a lot better than a spray detailer.
You might consider the FR500S rack. Kohr Motorsports is selling them for $450. Supposed to give better feedback due to less assist and different ratio. I just ordered one.
I run RE11's on mine. 275/40/18 on 18x9.5 wheels. I wanted the RE71, but couldn't find a size I liked. I ran the RE71 on my last track car (E36 M3). Loved them. Great in the wet too.
The RE11 is close, and does last longer.
I just bought a set of Hankook RS4 (285/35/18) for my other set of...
I run a Schroth quick fit pro and a HANS (2009 GT with Recaro seats). The ASM (Anti Submarine Technology) in the 4 point makes them act like a 3 point in a crash. They are also DOT approved.
I love mine. Ran them in my E36 M3 as well. As you get faster, a cage and proper 6 points are the way to...