Legendary West
I was really excited to start playing Red Dead Redemption and I haven't been disappointed in any area except for the shitty ending of the game in the single player campaign. I won't spoil it for anyone but lets just say that it's not what you're expecting.
Anyway the campaign is enough to keep you playing for a few days especially if you want to 100% completion the single player campaign. The stranger missions (a few of them actually strange) are a good addition to the game.
I do love the fact that after you've beaten the game you get a chance to go back and do everything you've missed which means that you can still get a 100% of the game just running through the campaign and going back. Assassins Creed style.
The multiplayer is also awesome in this game but I'd warn against just going public. There really is no need since you also get experience playing private which is what I prefer since I'd much rather play with friends than random asses who have no idea how to have fun.
I'd give this game a 9/10 for the open multiplayer mode and campaign. Definitely a buy and not a renter.