This belongs on your Las Vegas trip itinerary for a couple of reasons:
* It's pretty cool
* It's free
* It's quick!
* It's located in the Forum Shops at Caesar's so you can see a lot of other cool/expensive/covetable/interesting things along the way.
I don't go to the show every time I'm in Vegas to be clear... but whenever I go with someone that has never been, adult or my tween niece, this is definitely worth a stop as part of the other things to see and do at Caesars. Daily from 11 am to 10 pm... get there at least 15 minutes early to get a good spot to see it all.