I like Chicago PD, haven't watched in a while (after Sophia left that FBI job). The only thing that I don't like is how... well, American it is. It's all about "my town", "my people", macho guys and gals everywhere. A bit like that show "The Last Ship" which was terrible. It just makes it over the top and every time it happens it kicks me out of any immersion I might be in.
And why is it that in every show, the agency that the main characters are in are the best, but every other are lazy and incompetent? Unless they do a cross-over in which there's this bromance awkwardly taking over the episode.