Just enjoyed my free Friday morning on it with the Alfa GTA. As said, fps were really on the limit, so we'll need to wait for an update to try it for a fun night, and some graphical objects have no physical mesh, but otherwise it is an amazing track and the road physical mesh is beautifully done. Highly suggested.
PS: Fat-Alfie is also the guy behind the now disappeard bilsterberg track (a must have for a track day with slower cars, if you like elevation changes). Track is not available online anymore (he sold the finished version to the track owners themselves) but some of us have the practically finished beta, if you need.