I dug the first season, with some reservation. Haven't seen any of the second yet, but looking forward to it. Sad to hear there won't be a third.
Yeah, the show got really great near the end of the first season. I consider the three parter finale with Loki to be very high up there with the best of animation.
It goes VERY well with the new Avengers movie we just got. Too bad it couldn't last longer.