I've been playing for five hours or so. The game has huge potential. I can't play the career because I chose group A and if I change my tune, my car leaves the pit without a right rear tire. The stock tune is undrivable. Until they fix that bug I'm stuck playing practice, time trial, and online.
Speaking of online, I've completed one race successfully.
Force feedback is actually working well for me. I'm using the raw setting with the gain on 50%, and everything else on 50 as well.
The formula X car is insanely fun to drive.
In general it seems like the vehicle sounds are worse, but maybe I need time to adjust.
Overall, liking it so far, and I imagine it will be great once it's all patched up.