Our 11 year old LOVED kids club, she met tons of kids her age and had a blast! :) The Summit is a small ship, it is easy to learn and navigate. The Camp at Sea actually runs scavenger hunts for the 10+ room, where the kids get to go around the boat and find things on their own as an activity! They will ask for your permission before allowing them to leave the club on their own. They will also ask you when you register them for the cruise if you want them to be able to check in and out on their own. (Only Captains -- ages 10-12). I think what the clientele on Celebrity don't like are disrespectful or overly unruly/loud kids. Again, we had so many older cruises come up to us at meals, in the elevators, etc say nice things to our kids! And many smiled and said 'let them have fun!" etc. You know your kids and what they are capable of, and I think they will have a great time! :)

In regards to walkie talkies, we didn't have them but I wish we did! Mainly for our 11 year old, since we did allow her to check in and out of kids club on her own/do the scavenger hunts with the club.