Cameo's were fun. I liked this but I think I'll like it more when there's a bigger, more diverse team. It seems somewhat redundant to bill it as the hormonally charged teen bopper animaton and have only one female on the team so far, who isn't even human. I'm sure more will be added in future episodes...
So I caught the premiere tonight. Overall, I liked it and I will continue to watch.
The animation is fluid on Young Justice and it makes the fight scenes look spectacular. I hate the "flashy background" thing they did on Teen Titans and various shonen anime.
Also, Crispin Freeman voices Speedy and the Guardian so that is a plus. I loved him as Kyon in The Melancholy of Haruhi Suzumiya. I was unimpressed by some of the other guys though. Going along with what Robin said this episode, I wasn't "whelmed" by them.
Anyone else like the shoutout? Superboy was discovered on floor "52."