I got bored of Crysis 1 though made it quite a ways in and it was okay in parts.
I don't think I got through the first level of Crysis 2 before deciding I was bored and not in the mood for the game. Haven't found the mood to have another go. That's not exactly a fair assessment of the game, but sometimes I just start something, immediately think "oh not this crap again, I have better things to be doing".
I do not have any reason to expect things will get a lot better for 3.