I got it yesterday (24th) and played the singleplayer for a while, what an experience!
Love it! Haven't finished it yet tho, playing on Veteran.
However, when I switched to Multiplayer to chill out with some Instant Action, I gotta say
What a difference with the feeling playing it!
It's ALOT more fast-paced than the campaign (Still love it!!)
So yeah, it was defenitely worth the money!
Oh and btw: One bug that really needs to be fixed is the bug with the multiplayer menu music:
When you finish a match online, and leaves the lobby to fix your classes (or something) the music plays again, but kinda overlays the first music so it gets VERY loud!, distorted aswell
Please fix this crytek!
Thanks.