Resident Evil 5 has an amazing story. Really epic. So for that alone, at least rent the game.
But the best part of the game is the co-op, yelling "HOLY CRAP!" and coordinating with your teammate is a ton of fun. The graphics and locales are well done.
But here's the problems. The single player is ass. It's just not fun playing by yourself. The second problem is the controls are kind of sluggish. I tried replaying a couple time but it was just a struggle. So I ended up reselling it too.
Programming: 5/10 : Controls felt kind of sluggish. Single player teammate AI is horrid!
Graphics: 9/10 : Graphics are really great
Story: 10/10 : Story is thrilling
Atmosphere: 10/10 : The various African locales are really well done
Multiplayer: 7/10 : The co-operative is really fun
Overall: 7/10 : There's an exceptional game here, I think it just gets bogged down a bit.
P.S. I love the main character because his name is Chris, memo to developers: NAME YOUR CHARACTERS CHRIS!