Ok, I am back, and can answer questions. I'm not going back for the dancing or fireworks due to the crowds and heat. Overall, I was underwhelmed. I love Disney and have been more times than I can count. But, the Frozen event seemed very thrown together.
My 9 year old daughter and I got there at park opening. Wanted to be earlier, but buses were running slow. We went straight to Oaken by about 9:15 and the merchandise line was wrapped in front of Toy Story and easily 2 hours. I went down and talked to a manager who said the ice skating line would drop you into the store, so we did that. We were in and out of Oaken with 2 Elsa dresses, 1 Anna dress, and 2 Elsa/Anna flip dolls within 20 minutes. The check out line was ridiculous, but the snack line checked me and some other lucky customers out with a 1-2 person line. (I heard our quick way in may already have ended, and I'm really disappointed how Disney squirreled away all Frozen merchandise for today.)
Inside Oaken we saw a place to take a picture using an app, ice skating, snacks (adorable but $$), and some kid snow sandbox that we couldn't get near.
Later, we saw the parade. It was crowded. Like really really crowded, so we waited 30 minutes in a decent spot. Someone fainted from the heat near us. Parade was cute. It's some ice skaters, skiers, Elsa/Anna, a house, ice men, Kristoff (one of the most realistic characters I've ever seen), and some visitors in villager garb. Incredibly short. We followed it toward the hat but skipped the welcome for a fastpass.
The singalong was filling up about an hour early for the 12:30 show, so we ate lunch and then got a pass for the 1:30 show at about 12. We rode a ride, ate a snack, and went back at 1:15. Very crowded. We were seated in bleachers in the back and someone tripped because they turned the lights off and the show started a bit late. Overall, I liked the singalong. Elsa, Anna, and Kristoff make an appearance and the whole thing is told by Arrendale historians. Then we left because after Epcot's fireworks crowd last night, I needed a break.
Hope that helps. I'd give Disney a solid C on this whole thing. They tried, but to me the magic just wasn't there.