It was pretty good, but Anakin was pathetic. I couldn't stand him at all. I understand how they were trying to portray his frustration and him acting on impulses and such, but its like they did it so that 4 years olds could understand it. By the end of the movie I was expecting Anakin to just ask Padme "Hey, I lost my number, could I borrow yours?" or any number of other corny pickup lines. Honestly, if he wasn't bitching like a little kid having a tantrum about how he is so good or how he doesn't want to follow orders, he was hitting on Padme. They could have really portrayed that better, and much less bluntly.
Other than that I liked it a lot, though it seemed like either so much happened in so little time, or so little happened in so much time. The light saber battles at the end were crap too. Yoda was awesome, but it was over so quick and happened so fast and blurry that you had no clue what the hell was going on. I liked the Darth Maul battle from Episode I better.