Saiki Kusuo no Psi Nan is one of those comedies that is actually funny and not Japanese-funny. One of its strong points is that it uses a short chapter format with fast paced comedy, so there is rarely a dull filler moment. Most characters, while interesting, are "stereotypes with a twist", which might make some punchlines predictable. The humor of many chapters comes from the not-informed-by-the-narration fact that, although the main character appears serious and presents himself as a sort of voice of reason, he's actually kind of an idiot and does unexpected and ridiculous things with his powers. Has some nice world building that makes everything that happens kind of make sense in the context of the series. It includes some subtle social critique in some skits, which I personally like.
Animation is nothing special, adequate for a comedy anime. Has very few off-model moments.