Breathtaking. I think I spent more than half the show sitting forward in my seat with my mouth hanging open in amazement. $200 million spent on the stage I read earlier that day, and OMG it was worth it. The speakers in the seats were a little loud, but I don't think there was a bad seat in the house. I actually think the 'upper tier' seats were better as it afforded you a look at everything going on at the sides of the stage.
The costumes were magical, the music was inspiring, the story was great, the total experience was fantastic.
The only thing that threatened to mar the experience was the annoying habit of people in Vegas to stroll into the show 5-20 minutes late and the theater's policy to still allow them to be seated at anytime, not just in transitions. It was extremely distracting and I missed some of the story during the beginning because of it.
Also - their computers were down when we went so I was unable to get a real ticket to keep in my ticket album - bummer but I guess that means I'll have to go again!