The only Adult Swim cartoons I really got into were The Maxx (adapted from the comics, of course), with the only originals being the early Venture Bros (first season especially, going downhill from there), and Harvey Birdman, Attorney At Law (loved the not-so-internal monologuing of Birdgirl and how no-one ever really heard it

).
I haven't actually tried watching any of them since around the time they came out, however, so have no idea how I would react to them now. I have The Maxx, all the Harvey Birdmans, and the first season or two of Venture Bros on purchased DVDs, so could if I felt I had the time and felt in the mood. But I just haven't been in the mood.
Possibly that leads me to the same conclusion you are at, EJG III.
