It's a fun and interesting place. You definitely don't want to let a smaller child go without an older child through some of those tubes because it's poorly lit, poorly ventilated, and other children are very badly behaved sometimes. You get that anywhere so that's not specifically a problem with this venue. And, yes, they have a toddlers area...much more boring.
What does really suck is they charge the parents. It's a kids place and yet you're charged something like 12 or $14 to sit there and watch your kid. Ridiculous!