I'm finding this game more fun than Grand Thief Auto series. (The two are very similar as many reviews and previews have mentioned.) I kinda gave up on GTA after Vice City. I didn't even get GTAIV because I knew I would be awful with that game. I just don't have the patience for those story missions.
Saints Row 2 doesn't match up to a lot of games in terms of graphics. It actually looks like a PS2 game. I'm reminded of Vice City but who cares, this is more fun and less serious (less hardcore if you like). It's very arcade like and easy to just pick and play anytime, which is what I like as well.
The other thing to like is that there are lots of options for customizing your character's appearance, style and even his "crib" can be upgraded with nicer decor and furniture. Once you start making more money, you can buy better looking clothes and maybe even a nicer crib in nicer neighborhood.