We just got back from the Conquest with our children ages 3, 7, 12, and 16 plus my husband and myself. Getting on the ship took longer than usual due to a medical evacuation the day before. We were in line for about an hour and a half. Make sure your son doesn't bring any toy weapons as our 7 year old had his NERF sword confiscated at customs - ridiculous! Once we were on the boat and had something to eat on the lido deck everything was great though. Next time we will go straight to the room and order room service for that first lunch. The lines at the buffets are long that first day. We also never had another opportunity to order room service, being so busy as we were.
Our dining room was the Monet at the back of the ship. We had a window that overlooked the water from the back which the kids loved. We could see the moon rise many of the nights from our table (had a full moon one night)! Ketut (Phillipines) was our waiter and Eric assisted. They were wonderful waiters and very friendly and loved the kids. There was a vibration being so close to the engine, but it didn't bother us. The food was fabulous!
Out of all of the nightly shows, the Lady Helluvi Magic show was the best. It was a Cirque de Soleil style with great music and magic. The first night's show was entertaining, Point and Click was boring, and the rest of the shows were worth seeing, but the magic show was the best.
We had inside cabins. They seemed roomier than I remember the Ecstasy cabins being. We were on the Veranda level (8) below the lido deck, but in an area with cabins above and below us, so there was no noise. It was a very convenient location to most activities. The Monet was far away, though. Camp Carnival was directly above on level 12. I highly recommend this location.