We used EFP this past April. When the park is crowded, It is a dream come true. We went when the park first opened, and I (dear ole dad) walked the park and collected fastpasses for every ride I could. Another MAJOR advantage is that the fact that the CMs do not look at the end time on the FP. Therefore, you do not have to rush from ride to ride. After we rode each ride, we got another FP for that ride. We just kept circling the park riding rides with minimal wait times. We even picked up fast passes at 3pm, went back to the room, had dinner, and came back and walked right on the rides.