I really enjoyed it. The whole gadget aspect is obviously overdone, and making fun of that didn't really make up for it. He can pull out a sword? He's got a jetpack? He can just bring out an oxygen shield out of his mask? He always carries Kryptonite around? (Why?) But, y'know, maybe that's just the Silver Age aspect. I'm willing to look past it.
I expected that these pairings would just happen, and that'd there would really be no story about it. They did with the Green Arrow, but it... it kinda made sense, and then we moved to the Blue Beetle, and I think they did a great job with his character. However, I have no character to expect there; I personally have no clue who the Blue Beetle is (I keep up with Marvel, not DC). But, it's apparent that they've delved into the Blue Beetle's history. I like that. Another thing I was expecting was just a Batman cartoon with cameos, but this looks like it's actually just going to use Batman as an anchor for concentrating on all these DC heroes. This, I will be excited to see. I'm looking forward to the Plastic Man episode, 'cause I don't know anything about him, and I'd like to, even if they take their own liberties with it.