Amazes me that people rate this show poorly, the show isn't supposed to be some god tier story like FMA brotherhood or some god tier plot and pacing like Death note. Its supposed to silly, relaxed, and comedic. You watch this show and its OVAs for the characters and the humor, this show is top tier and the only people who can find fault with it are pretentious and literally just want to hate on this show.
Its like hanging out with your friends without a worry in the world, thats how I describe this show, and thats why I love this show.