I honestly love this anime. There wasn't a single moment where I felt bored, every episode made me laugh, whether it was quietly or outloudly. Humor is, ofcourse, still a subjective thing, but I really liked the character interactions and the way that the characters portray typical shoujo archetypes and how they were done differently.
Some may say that there isn't enough romance or development, but we have to remember that Monthly Girls' Nozaki-kun is a romcom. It is meant to be entertaining, thus the characters often don't need to develop or change like in the romance or shounen genre. I view this anime more as a comedy actually, so the lack of romance doesn't bother me.
The animation is fine, and the opening is honestly a bop. The anime was overall very enjoyable and could cheer me up.
If you're looking for an enjoyable and entertaining anime that isn't all that serious, I'd recommend this one.
If you were not into this, that is okay ofcourse. I respect your opinion.