It's a 5 stars for the graphics and sounds, mostly.
There are some areas that could see some improvements, which we made by ourselves for ACK League, a league we're doing with my Sodi SR4. The RT10 is very far from realistic, and that's why this track results to be too much bumpy on a well made kart (I worked on the kart for 1 year, fulltime). If you want I can give you the updated files, I also improved the ramp transitions, and we're going to add more pits and spots in the start grid.
Thanks for your work, you'll see our live on it if you want! :P