I played RF for a week then got sick of it and went back to LFS. Here are my plus and minuses:
+Nice Graphics(but i dont really care)
+Night driving( So much fun)
+Modding(as modding the game: once it kicks in, it should get crazy)
+Blown tires from damage(Might be in S2 once its finished?)
-Just doesn't feel like a sim
-The cars and tracks just arent very interesting/boring to drive
-Ugly cockpits(No numbers on the Tach and weird steering wheels)
-The price... In it's current form, I find it's real expensive
-Bad AI, but so are the one's in LFS
For now, there are only 2 series that have managed to keep my interest for more then 2 weeks. Nascar Racing series(played for 4 years, no longer play it) and LFS. Once i tryed LFS for the 1st time i got addicted same as NR. The tracks might not be real but my are they ever captivating and the cars are so much fun.
For me... all LFS needs is night-driving, weather effects, and more limitations to the setups of the road cars. Kinda funny that you can adjust you camber setting by 0.1 degree increments on a road car. Another neet feature would be that the time of day would be the same as the time on the server
but thats off topic.