My Thoughts
I will admit that I have not read many comics in my lifetime. I've never had the opportunity to read the stories this movie is based off of. But in a way that doesn't matter, I think this movie had a smooth enough plot so even I could understand.
The Bad
As everyone I was disappointed at William Baldwin's voice of Batman. Everyone else had a good voice actor who fit them but Baldwin wasn't really the one to be Batman.
I also felt Lex Luthor's design was lacking. It was an alright look but I would have preferred it if it was closer to the normal Lex Luthor warsuit. It was no big deal but the it would have looked better in green and purple.
The Good
I greatly enjoyed the change of cast. It is kind of fun to see new people try it out. I also appreciated the change of costume for the Crime Syndicate, it was a vast improvement compared to the their looks on the pictures here at Comic Vine. The plot was solid and entertaining. Overall this was a pretty good movie.
Now one of my favorite aspect of the movie was Owlman. I think James Woods played him perfectly. But what really amazed me was his style. You expect the main villain to be overenthusiastic but Owlman was calm, even bored at times. It was a nice, interesting change. I don't want to spoil anything but this Owlman is definitely a must-see.