You gotta love weird humor to appreciate this, but I found it wonderful. Got all teary during the last episode.
Give me only this series and Saiki Kusuo no Sainan for the rest of my life. You can keep all the other animes ever made. (Well, I'll also take Hajime no Ippo, Haikyuu, Gintama, Baki, Akagi, Hyouge Mono, ...)