Never been a fan of Cody but he was a good amateur wrestler before turning "pro", the term "Triple H jr with less talent" is pure hate, Cody would run circles around Triple H in an actual wrestling match.His entire persona is based off of Triple H from his ego to wanting to be the center of attention, to his over the top entrance, and his politicing. These are all things Triple H is known for so yeah hes Triple H jr with less talent.
About the ego, he's justified to have one. The guy left a job he could have for life because of his family name and with good remuneration probably, to go outside and bet on himself. And what did he acomplish after a few years? He managed to find a billionaire to fund a new wrestling promotion that is actually an alternative at his old promotion and he didn't have to sleep with anyone's daughter to became a big fish.
Is he arrogant? Damn sure he is and he has all the right to be because he earned it.