First, IMO, the food is not what it once was and has gone way downhill. It went from being a "must do" to an "it will be a long time before we do again"
As for the kids liking it, as a PP said, it all depends on where you sit. If you sit next to the tank or close enough to it where you can see everything, they will enjoy it. However, if you are not that close to the tank, it may be almost frustrating to them.
Also, if you do get an ADR and you don't end up near the tank, please please please don't let the kids go running around to the tank. There are people trying to enjoy a meal and it just erks me to see when a parent has no regard for other people.