The weight balance is in the ballpark of 65-70% up front - so pretty much opposite from RWDs, that have this on the rear. It works best on low-bite surfaces like clay, dirt, grass, on bumpy tracks and in dusty or wet conditions. That said, with some setup work I've also got good performance from the car on dry, low-medium bite astroturf (Kampenhout, Belgium)
I wouldn't vouch for its performance for high-bite carpet tracks like the EOS though