Assassin’s Creed games mouse/keyboard controls have been a bit mixed in my experience:
Assassin’s Creed: worked quite well
Assassin’s Creed II: mouse acceleration, framerate capped at 63, some locked camera angles when moving around
Assassin’s Creed - Brotherhood: mouse acceleration, unlocked framerate (which makes the mouse acceleration more bearable - more responsive at 120fps), more locked camera angles than AC2 had (sadly).
All playable, just II and Brotherhood are occasionally frustrating.
Haven’t played Revelations or AC3 yet.
Got Bulletstorm while it was on a flash sale the other night. GFWL seems even slower than I remember it being back when I first had to use it.