Exactly. Stated. Subject to change. In fact a great many of them have already changed. I'm afraid I don't share your unwavering faith in the words of a man with no signs of conscience or humility.
The man Trump has a reputation, family, business partners and even adversaries who tell you about the Character of the man. Nobody outside his political opponents and their machine calls him dishonest. All say hes a man of his word. In other words we have actual real world evidence he does honest dealings, keeps his word, works hard, practices good values (see his family) and is respected by everybody even you.
Yes he has warts, None of which overcome the history of getting done what he says hes going to do.