has anyone seen the ad on redrc for the engine dyno?

anyone used it, or seen it?

I saw the ad. It sounds like it is a brake dyno which could be very useful but I think an inertia dyno would provide better results.

I know during the development of the X-Dyno a brake dyno was tested and proved to not work nearly as well as the inertia dyno. I heard it blew engines up very easily.... After looking over the video it seems as if its an inertia style dyno.... But i am not certain about that as the video wasn't very informative as far as details of that.