This is a short review of the whole series and my first ever review at the same time.
2018 really graced us with so many good comedies! Humor is very subjective but as far as the gag comedy anime series go this one is one of the best. What I love the most about this show are its characters. First season had a great cast and some new characters are added in the second season. Every one of them is unique and funny in their own weird way. (My favorites are Saiki himself and Teruhashi). The show is also full of great recurring characters, well executed gags and constant 4th wall breaking.
The show's weak spot, as with many comedy anime, is it's story. It is kinda episodic, with some overarching plots, but the show is just so full of heart that even the slower parts are just as enjoyable as the best parts of the show.
The whole anime is available on Netflix and I wholeheartedly recommend the English dub (Only the 1st season is dubbed though) because it is just so well done and it is easier to follow some of the fast-paced jokes.
Go watch this anime, as it will surely make your day better!