My kids are 8 & 9. One of their friends went recently and reported that the suites contain built-in cabins for the kids.
At those ages they will love it. For younger children it's not worth it if they can't ride everything. It's pricey and the others are correct- there will be many other kids there. But that goes with just about any amusement park worth visiting. If you can get there mid week it's much cheaper.