Just finished Bulletstorm. Awesome in every way except for game length.
Just the dialogue alone, oh man. Steve Blum (you know, guy who voices Oghren in DA:O, Grunt in ME2, also SPIKE goddamn SPIEGEL in Cowboy Bebop) voices Greyson, the main character. He must have had so much fun reading the script.
Also, Jennifer Hale (female Shepard (best Shepard) in Mass Effect 1-3) is a side character. She gets to shout things like 'IF YOU FOLLOW ME, RIMJOBS, I WILL KILL YOUR DICKS."
To which Blum replies "...Wha? You'll kill our dicks?" Oh, man. So cool to hear them both saying such ridiculous things.
oh and I guess the gameplay is a lot of fun too.