In my opinion, one of the best primetime cartoons ever made. Seasons 1-9 were gold, but it went a little flat after that. The writing and premise were spot on, and every character was brilliant (except when they decided to add Lucky to the line up, I always found him a bit boring); I love how it takes the image of idealized Americana and twists it around with little touches, like affairs, immigrant neighbours, paranoia, and in Bill's case, psychological damage.
It was a shame to see it go out with a whimper instead of a bang, but those golden years were priceless, and classic television.