It's a shame that this show was overshadowed by Yuri On Ice back in 2016 when it came out, because this show is fantastic!
The animation is creative and good quality, the soundtrack is one of my favorites out of any media, the characters are well developed, the pacing is good, and it's a relatable story line without just being about a crush in high school. ONE's stories are always told well in a creative way, and his trademark overpowered characters are handled really well.
Mob Psycho also presents a good message that a lot of anime with OP characters tend to mess up; that your powers/skills don't make you any better than anyone else. Mob at a young age is told that psychic powers are the same as having any other talent or skill, like being good at math or sports. This is refreshing as a lot of main characters are constantly being told that they're special in some way, good or bad, because of their powers.
Another refreshing part of the story is that kids actually ask adults for help, and the adults help them. It may sound stupid, but think of how many shows have a plot line where the adults: A. don't understand, B. aren't told anything, or C. refuse to help for no reason. Probably a lot, right? Mob Psycho has actual RESPONSIBLE adults in it. Revolutionary.
These are just a few of the nice changes from the norm to come out of Mob Psycho 100, but there are plenty more and I'd highly suggest watching it!