I flew on a United Express J31 ten years ago from Syracuse NY to Washington Dulles, United's hub on the East Coast. I don't remember going through any turbulence, I had quite a smooth flight. I do remember that the aircraft didn't have a bathroom or a galley, no flight attendant.
The last time I saw a United aircraft in the old colours was two years ago at Chicago O'Hare. It was a United Express aircraft, I don't remember what type it was, the whole mainline fleet was already repainted in the new colours.