We got a FP+ for Fantasmic because we were there on New Year's Eve. It was nice not to have to wait in line for a long time, but if I had to do it over, I wouldn't use a FP+
Even though our seats were near the front and we got in first I actually think people near the back have it better. We got seated right down front, but I wanted to get up and go to the bathroom. The people pouring in at that point was impossible to pass and was like swimming upstream. I finally gave up and went back to my seat.
When the show was over, the people at the very back got out quickly. We had to wait quite a while just to move and cast members were yelling constantly to keep folks from climbing over the seats.
Next time I think I'll wait until just before the show, mosey in and sit near the back.