Yes, very very good. The campaign is great. Story is awesome. Productions values are great. Soundtrack is fantastic. The voice acting is top notch. Also it has a ton of "HOLY **** THAT WAS AWESOME" moments that are completely unscripted. What I've played of multiplayer wasn't bad, just kind of standard fare for a game like this. might keep you playing a few more hours but would't last forever (havent tried every game mode though) Definitely worth playing though.
So the PC version came out yesterday; I traded in the 360 version and bought it. I've been playing a lot of PC games again lately, and I beat the first 2 on PC so it just made sense. There's been a couple bugs here and there, but for the most part it's very smooth. The graphics are better, and it's a lot easier to control with mouse and keyboard. I'm on the 6th chapter, after I beat the 5th it said I was 1/3rd of the way through I believe. Awesome...awesome game.