Sorry for a necro bump, but I'm just catching up on this thanks to Netflix. Fuck, it is awesome. The first few episodes were kind of iffy (although the episode with the Waynes getting shot was probably the saddest version in all Batman cartoons), it kicked into awesome around episode 8 or 9. Just straight up ludicrous.
I love episodes that have references to Adam West era, Batman89, The Dark Knight Returns, BTAS, and the 40s serials all within the span of about 2 minutes. I can't believe I didn't give this show a chance while it was on. It's probably the most fun of any DC cartoon ever put out.