Speaking of sound, the environmental sound effects were very nice. As a kid, I had that cassette tape of Classic Trek sound effects, and one of the first ones was that really long "alien planet" soundscape one. The new version really captures that feel while also seeming like it could be an icy, windswept wasteland.
I dislike Hoth-type ice planets. Why is it snowing? Where does the snow come from? Where is the water vapor coming from?
Real ice planets should be cold and windy, with a hard ice surface that just stretches, with no snow ever falling.