I didn't care for the CRJ-200s that DL used to fly out of my small hometown airport. I've drank larger cans of soda. I don't think I've flown on a CRJ-700 but I don't mind the 900s at all. Currently AA flies ERJ-145s out of our airport which IMO for a small jet are pretty nice. I always try to get an A seat which in the 1-2 config gives you the best of both worlds -- a window and aisle seat.