The character writing is the best part about this show. And compare to the first season, where all the characters got equal amount of screen time, which means every of them had next to none of it, the focus has been changed from introducing as many characters as possible to developing already established ones. Kageyama, Reigen, and even Dimple have unique personalities and their dynamic is what makes the story unique. Those moments where the characters interact with each other, dealing with their problems, and just living their lives are what the first season was missing. Unfortunately, this the only improvement the sequels managed to pull off.
The supernatural stuff keeps pushing my suspension of disbelieve to its limit. There are other minor issues the show has, but they don't worth attention compare to this one. The anime constantly changes its tone from lighthearted slice of life moments to death battles, after which every character acts like it never happened, they just continue to do their chores totally clueless that some of them were on the verge of death a couple of days ago. In addition, it's so safe that I had to look up on the internet the rating. And apparently PG13 means for kids below 13 in Japan, because everyone is safe. Side characters? Nope, all of them are alive. Regular citizens, whose houses were completely destroyed? They just evacuated beforehand, so their lives ain't in danger as well. The evil organization from the first and second seasons, whose goal is "[to] destroy everything that people built and hold dear"? They're just peacefully waiting in a tower and let the vice president free after they abducted him for no reason. Claw is a total failure because of its unoriginality and the way it's executed but this deserves its own analysis.
Mob Psycho is one of those anime, where I'm not sure if I like it. The character writing is not the best to ignore all the flaws. As well as the bad parts aren't that bad to make me completely forget all the fun I've had with this show. As I said you need to be picky about the parts you bite. And I also said that the writing had significantly improved, so if you overall enjoyed the first season you can go for it.
