He's a very strong fighter, and he's also very reliable, he makes it clear that he would give up anything for the people he cares about and has gone to the extent of abandoning his mental and physical health, nearly killing himself multiple times to prove that, and it's very admirable that he's not afraid to show his emotions in any situation. He has a pure heart and he's a strong hero. His determination and disipline throughout the entire series is incredible as well. No matter what anyone said he told himself that he's going to pursue his dream no matter what might hold him back, whether it's being constantly insulted by the people around him, or his lack of powers. Not to mention how tactically skilled he is. His ability to analyze what's happening around him and quickly formulate strategies is actually incredible, the way he uses refrences to other powerful heroes to help himself and others get out of dangerous situations is impressive because of how long it took to gather that information nd break it down into useful strategies in combat. In conclusion, he's powerful and he's a truly amazing character overall.
