Like Babylon 5, this was a show that I couldn't watch regularly when it was on television. That said, Vincent and Catherine's story was a compelling one that I took every opportunity to catch up on.
My favorite characters were Catherine and Father, so like most fans, I was unhappy with the show's final season. However, I did think that the character of Diana Bennett had a lot of potential. It was unfortunate that she had to be introduced the way she was.
I picked up the DVDs a few years ago, but I'm still waiting for an opportune time to watch the series from start to finish.