I enjoyed it. Watched it randomly on TV every time it happened to run, and even rewatched all seasons in order a few years ago.
I'm an autistic nerd, so their setting is interesting to me, and I find the parody of the nerd scene on point. The humor is enough to make me laugh, although not a masterpiece, so overall decent series to watch.
Explain what marketing tactic they used, that made the show last 12 seasons, but doesn't work on 99% of other shows which get cancelled long before that