It was fun, but unlike other shows from Watanabe I've watched, it left no impression. I remember watching it and thinking that it looked really good, but it wasn't satisfying. The characters were merely losers that I got to laugh at weekly, but they didn't grow over the episodes to be any more than what they had been at first. The series had no continuity, each episode taking place in its own universe, and that gave me nothing to look forward to. I ain't against self-contained shows, but I like it when the characters have continuity. You could say K-on is like that.
The episodes that left an impression were two: the afterlife episode, and the episode where the maiden blooms. Those I might rewatch at some point.
This season of anime, the only show I am watching is Lazarus. The first anime in a while that's fun in a way that reminds me I have a pulse, and I'm a living person and I'm watching a show. A lot of anime has a dulling effect of boring content on me, but Watanabe is capable of escaping that. I think I'll go watch some of his other stuff I haven't yet.