Just a personal opinion, to my disappointment, just like what 90% of PC users say, I am somewhat disappointed with the game. I prepped my PC prior to the game (water cooled so I can push it to its limits), but I guess it wasn't worth it. Compared to Crysis 1, everything to me feels like MW2, with all the close quarter battles in SP, and the perks and mindless shooting in multiplayer. Graphics are nowhere near the original crysis although there may be a DX11 patch somewhere in the near future.
I still re-play Crysis 1 because you can do so much more in the game.
I don't feel like I wasted my money, but to me and perhaps some other PC users, Crysis 1 is still king of graphics (except metro 2033), and BFBC2 is still king of multiplayer that actually requires a little bit of skill and coordination. Now the long wait for Battlefield 3.