Ok I am on my ipad, so it will be brief. I can type more tomorrow evening after we get home.
Two things to keep in mind...I only paid for one person and I have never seen the movie Frozen, nor ridden FEA.
We got a phone call about 5:20 telling us the event was moved indoors and would take place at the Norway pavilion. We were told to report at 7, but we could have waited until 7:45 or so to show up.
@FastPasser. might hurt me, but I actually liked it inside. It was cool, no bugs, bathrooms were right there, it was private and I felt like it was something special because we got to go backstage. I imagine it is much easier for the event staff as well, since the kitchen is right there to restock food and dishes, drinks, etc.
The tables were set up exactly like in the video and the entire team of CM's were great. I didn't try everything, but what I had was good. I loved the fondue.

We did share a table with a truly delightful family from Trinidad who had an adorable daughter close to my nieces age. We stood by them during the fireworks and rode the ride with them.
We were led to the fireworks viewing area, watched the fireworks in a roped off area and were then led back to the ride, I believe through the fp lane. Riding with two 9 year old girls totally made the ride for me. Their delight made my heart happy (or maybe that was the three drinks I had during the party).

We did only ride once and did not ask about a second time through.
Overall, I felt it was worth it, but again, I only paid for one person. If I was paying for a family, I would probably weigh the cost a bit more.