Got a few hrs into the SP campaign now and its pretty good....a definite rental and B grade game..game pauses and almost freezes at times during checkpoints and while riding horses the vegetation just seems to spawn up from nowhere..other than that the storyline and gameplay has been decent...the duels are a lil hard to catch on at first..but not bad.
Also its setup perfect to be a co op game with you chosing between the two brothers during the game but its not a co op game..that didnt make since either.