We were disappointed in it. Most of the dialogue isn't Anna and Elsa but characters not from the movie who are trying to be funny. And then they show the clips of the songs with subtitles. It's okay, I guess, and I'm sure your kids will like it. But IMHO it would have been much better with Anna, Elsa and Christophe instead of the other characters.
Overall, it felt really slapped together. Like they figured they needed to add a Frozen show to DHS and came up with it in about a day.