Hm, I only played Far Cry, Crysis and Crysis Warhead on PC. I don't agree that all Crytek games play terribly.
They looked phenomenal and played well in my opinion. Crysis had some gameplay innovations and there were so many different ways to achieve your goals. It's still one of the best PC shooters.
I skipped Crysis 2 & 3 because they dumbed them down for consoles. Shooters designed for consoles are always terrible on PC in my opinion. At least I don't know any counterexamples.