To add to this:

Hogwarts was well thought out and imaginative. The setting was practically a character in its own right.

But Harry Potter himself was unbelievably bland. He was nothing special, but was treated as if he were because of who he was related to or otherwise connected to.

Fully agree! The premise of a hidden magical society is really fun, but Rowling did a crap job of building a coherent world with what she had.