i really loved farcry, but just like Crysis, I would play the first half over and over and leave the second half to only cheat codes. The second half of both games immediately lost the slow pace and changed the dynamics with wacky creatures or aliens and then kept things that way.
Crysis Warhead at least kept switching the pace back and forth from slow to fast and back to slow again. I think they learned their lesson.
So, i'm hoping Farcry 2 will be fun... at least i'm sure the first half will be. :P