Season 2 was a huge surprise for me. I liked season 1 and how we got to know the characters and the world which they live in. Season 2 is far less action-oriented and focus on bringing more dramatic weight to the story and characters. This is a development to the show which I absolutely love and I can't wait to see where this is going in season 3.
Definitely one of the most inspirational and well produced shows of it's time. It helped pave the way for the rest of science fiction. It's incredibly slowpaced but I'd suggest at least watching a few episodes!
Definitely campy, and the autotuned vocals aren't always on spot, but Jane Lynch adds just the right about of insane humor to this show. The plots are ridiculous and sometimes hard to care about, but it makes good background watching.