I just got home from the movie. It's excellent!
Go see it!
The theatre was absolutely packed. I had bought my ticket a day early for the 12:01 showing. I got to the theatre around 9:15. There were already several hundred people lining up outside! This theatre has about 12 screens and 5 of them were showing Episode III, so there were 5 lineups outside. Boy, was it crowded. And it just got more and more crowded. Some guys had light sabres. So from 9:15 to 12:01 I spent the time waiting in line or sitting in my seat waiting for the movie to start. It was well worth the wait.
I will go see the movie again probably another four or five times within the next couple of weeks. I hope they come out with a boxed DVD set of all six episodes, I'll definitely buy it.