I've only finished two.
Blue Blazes is an amazing series that truly gets into the mind of a real artist. It's not some overblown Bakuman fantasy, our hero in this show is a lazy bones with a big ego, and he is the most relatable character I have ever seen in any medium. Really great stuff.
No Dropping Out, Back To School at 35 was okay. Too much drama and a lot of dumb elements to the story but it was enjoyable overall.
I've only watched bits of others, like Switch Girl which was meh, The Japanese The Japanese Don't Know was decent as it was a teacher trying to teach a group of forginers from all over. I should finish it, I did like it. Poker Face played in one episode where the Russian (or French?) girl becomes a waitress, it was an amazing song cue. Another show I watched had All You Need Is Love playing in the background of a nearby restaurant where it was being filmed, it was faint but you can tell Johnny Boy's voice from anywhere. One of the only times you'll hear Beatles music in a show, and it was accidental. I think it was the show where the daughter and father switch bodies.