Took my 4 year old here when I visited my mom in Vegas this past summer and we loved it! All that bouncing tired me out pretty quickly but my husband and son jumped away to their hearts content.
There's plenty of space for you to jump, flip and basically ensure your legs have a crazy work-out. The employees make sure everyone's following the safety guidelines which is appreciated. There's also these jumpers on the side for the smaller kids which was perfect for my little one. We couldn't get in there with him but we were able to keep an eye on him the whole time as there's nothing to obstruct your view.
In the middle of the large warehouse is a snack shop and some arcade games, though we didn't try either of these.
I'd definitely recommend this place for children's parties as well as just a spot to go to get out of the heat for an afternoon of good clean family fun.
Will be back when we're back in town!