I don't play it that much, mainly because I cba getting all the G25 stuff out. But I still have interest in the development (may it be slow)
1. Very realistic handling (with the proper input device)
2. Very good networking
2.1 No damn lerping tyvm
2.2 Very good server system
2.3 Chat system
3. Graphics are good (using high-res textures and ENB series)
4. Diversity. You can play the game however you want. Some people disagree though but this is my opinion.
5. No EA money hunger