Just finished the game on PC.
I just got a new video card a couple days ago; a Radeon R9 280x to replace my Gigabyte GTS 450, and this game performed wonderfully on it.
The gunplay reminded me of RAGE, by which I mean very limited weapon selection but they all feel really meaty and good. The shotgun was incredibly satisfying to use.
I thought some of the 'boss' fights were tedious at times, but only when I wasn't exactly sure what I was supposed to do.
The textures also reminded me of RAGE, which is kind of a bad thing. Super muddy up close, but looks okay at a distance.
Great art design and locations. Varied color palates and settings was a nice surprise. It was a great sprawling adventure with plenty of big memorable moments throughout.
Story-wise the antagonists were all proper nuts and great villains, and the game somehow made BJ a sympathetic, even endearing character. I could definitely feel the influences from Inglourious Basterds, and knowing that actually made the premise of the game more fun.