Well this thread has been dead for a while so I though I might share my thoughts of Saints Row the Third.
So I got SR3 when it was fixed around a month ago, I was really excited since I spent so much time with SR1 and SR2 but to my disappointment this game was very different. The game was never really serious, but it seems like the game developers decided to give up all seriousness when they made SR3.
The story mode is garbage and the graphics don't look like they've gotten any better since SR1 (2006). But Saints Row the Third is still an excellent game to have fun in, especially with cheats or enhanced abilities (which you gradually unlock throughout the game). The activities are still very fun too but aren't compulsory like the other SR games to continue the story mode.
The weapons and vehicles are also better than ever. I give this game an 8.5/10. I would have given it a 10/10 if the story mode was more engaging, the graphics looked nicer and a better AI system.