The whole thing showed he has no gear to move up to, beyond election campaigning. Still the same big promises with no practical plans, negative comments about his detractors (from some of his comments, you'd think he was still running against Hillary Clinton), and self-promotion.
For all the million other things wrong with Trump, it was just so pathetically unprofessional. So much rambling; he seemed entirely out of his depth.
The only time he seemed on firm ground was when he was denouncing something as 'disastrous' or lauding someone/thing as 'very, very special', or 'very, very elegant', 'very, very strong', 'very, very well', 'very, very very amazing', 'very, very substantial', 'very, very proud', 'very, very strong', 'very, very big' and... fucking hell. I'm using the transcript, and I'm not even a third through.
It was so desperately repetitive and unconvincing. I get the impression he's either going to be a loudmouthed egotistical nightmare who make incredibly uninformed and impulsive decisions, or an eminently steerable figurehead who is the big circus-tent distraction while other right-wingers quietly work. Both grim prospects, when you look at the people he has around him.