Finished Wanted: Weapons of Fate, and popped a few additional 'cheevs through chapter replay. I'm not sure if I'll replay on the newly unlocked Killer difficulty. It doesn't seem particularly hard, and there are another couple hundred Achievement points for the taking, but the game just isn't much fun.
tl;dr - probably going to step away from this. Grin had the base of a decent game here, the story was good, the voice actors are all the original actors, but it's likely that the push to get this and Terminator and Bionic JOmando out at the same time robbed them of much needed tuning.
The game is designed to be a cover shooter, sure, but it's SO solely designed to be a cover shooter that non-cover movement feels unnatural and un-tuned. The "Get your ass into cover" button only works if you're facing the cover, not just if you're standing immediately adjacent to it. When in cover, free rotation of the camera more than 90º will cause your character to stand up, away from cover. And, you know, get shot.
Combine these complaints: You're in a room full of enemies and cover. You run toward a low crate and take cover. As you sight down the room, and see four enemies shooting, you notice one enemy move out of view to the right, possibly flanking you. Rotating the camera to see if he's actually moving, your character STANDS UP OUT OF COVER. He begins to be shot. You mash the cover button, but you're facing away from the wall now. You move toward the wall, but the non-cover movement means your character doesn't immediately turn to face the wall. And the "cover" button doesn't work unless you're facing the wall which you're right next to. However, there was a nice big open space to run across and other cover 9 meters away from you, so your character sprints toward that instead, and gets shot.