Although I have nothing to compare it to, this show is incredible. We stayed at mgm so we had easy access to this show with a deal of buy one ticket, get one for $10, so we took advantage of it.
We went to the 7pm show, so doors opened at 6:15. The ushers are very interactive and friendly, and you will want to arrive kind of early anyway to see the pre-show.. you might get chased to your seat by one of the performers if you cut it close to starting time. The ushers also walk around and give children cushions to see better which I thought was nice and would appreciate if I had children.
Like I said, I have nothing to compare it to but the performers are amazing. I have a very short attention span and had thought maybe I would get bored at some point throughout the show but by the end it felt like I hadn't blinked once. It is seriously an hour and forty minutes of non stop entertainment, with incredible music and an easy story line to follow (which doesn't even matter because the entire show is so easy on the eyes).
I would recommend, however, getting a seat closer to the back of the theater. There are times where the performers literally fly over the audience and by not sitting so close to the front we were able to see everything.
The act with the wheel is worth the money alone. The fireworks at the end were nice, too.