Yeah, it was pretty good. I was surprised by how good the production values were, especially after looking at the Avengers cartoon. I liked how awkward Superman was with Superboy, very good dramatic tension for such a complex situation. That was something that was kind of missing from their original encounter in the comics (to be fair, there was a lot going on for Supes at that time having just come back from the dead and all). Robin still feels too young to me. I'm wondering who it was that the League was relieved Batman did not bring though.
I wasn't sure about the old Affirmative Action! Comics approach once again to include a black version of a character that had once been white (only as a different character completely), but Aqualad turned out pretty darned good I thought. I can see why they chose to make him the leader based on how they worked everyone else. Plus I've read he might be (highlight to read) Black Manta's son! That'll just be all kinds of awesome!