I was in row WW, which while the second to last row of the theater, was actually a pretty good view. I'm terribly near-sighted, so obviously couldn't see expressions well, but the view was a lot better than I'd been anticipating.
To me, in my far-away seats, the lead hidden folk guy looked like Khal Drogo from Game of Thrones, with a tail stuck on. With the big Let It Go costume change, the crowd went wild. My daughter informed me that she bet Elsa just had her slinky dress on underneath
I did think it was cool how they visualized Anna turning to ice, but the colors looked more representative of stone/rock rather than ice. Even from all the way in the back, I could see Elsa whip off Anna's platinum wig to reveal the brown one after she thaws.
Overall, it was an enjoyable show, but I don't feel the need to see it on Broadway again. My husband liked it, and ranked it above Anastasia but well below Comet. I liked Anastasia better. My 7 and 9 year olds gave it mixed reviews- my 9 year old daughter loved it, while my 7 year old son said he liked it a little, but not that much. They both really love Comet, so maybe they just have odder theater tastes.
Btw, there were plenty of booster seats for the kids, if needed. And bathroom lines were LONG. It's bad enough in a normal women's restroom line, but add a ton of kids and you can basically forget it!