As a person? He's very unfiltered for better and for worse, has a big ego and isn't always the best judge of character. As a politician? Often he gives people the benefit of the doubt too much at least when it comes to foreign policy, flips flops on tariffs a lot (I'm not against them but can we at least get a concrete stance that lasts for a few months at the very least) and has a tendency to attach himself to questionable business promotions or deals. To give him credit he has learned from a number of his past mistakes from the first administration. No man is without flaws, Trump is the ideal pragmatic option compared to his rivals, a truly "perfect" candidate doesn't exist and it is certainly better he is in charge of the country rather then Kamala Harris or Nikki Haley (Nimarata Randhawa).
I like a lot of things he's doing but those are some critiques that come to mind that go beyond just stating he isn't left-wing or right-wing enough to someone's liking.