I'm going to sink hundreds of hours into this. Nice improvements in graphics and sound. Gameplay is relatively the same. The "laws" aren't as harsh as the first one: you can break them and then just lose bonus items -- at least you won't "go to jail". There are a couple of new elements, such as clan privileges and some new stat points. I get the feeling the story is not as strong as the first one. Rockin'. Nintendo's game devs are really giving people what they want nowadays.
Chronotrigger DS is on the horizon. I've been hearing it for years, now I finally have a chance to see what the fuss is all about.