According to ESRB, this game contains: Blood, Crude Humour, Suggestive Themes, Violence
Parents should be a little wary - there's not blood, but, at the same time, it's a game about shooting people without any blood. There's enough other questionable material in it as well that it deserves to be rated T.
FPS fans won't find one here. Oh, it looks like a FPS, and it controls like an FPS, but believe you me, it's just shooting cans off a fence, 21st century-style.
Western Fans shouldn't even consider buying this game unless they've already purchased the far superior in every respect Red Dead Revolver. Even then, it's only for people who just have to have every single western game out there.
Deaf and Hard of Hearing gamers should have no real trouble with the game. The only major thing you'll be missing out on is the dialogue, but it's neither vital to playing the game, nor is it particularly well-written.