I saw the show last Monday. It was great. My issue with the fastpass was the timing of it all. The way our morning worked out, we didn't get a RSR fast pass until 9 or 10. And that wasn't usable until 1:20. I then worked my way over to the Hyperion, and the fastpass was for 1:30! So I came back a few times, and the time didn't change. It wasn't until around lunch time, when I took off for my Soarin' pass, and then I was finally able to get a fastpass for the next show.
After that, the day went pretty smoothly. We got on RSR around 1:30 or so. Then our Soarin' pass was good shortly after that. And from there, we were able to line up for Frozen.