I've put 500 miles on her. There are a fair number of tiny cosmetic differences between 2018 and 2019, inside the cab, that most people won't notice without looking very closely. I've had her on a dirt road that I drove a lot in my 2018 the week before. My initial reaction is that the e shocks are a noticeable improvement. Line-X is going in soon. Once that cures she will be on a lot more dirt and I can update on a more in depth comparison.
Mine rides very smooth, I can only compare it to the earlier gen1 raptor that I had. It corners very well with very little lean compared to the older models. The dealership had the tires up at 46 each, I put them down to what is on the door panel, 38 which made the ride a little better. All in I think the ride is very smooth compared to the first Raptors out.