I booked this cruise at the last minute to attend an educational conference held on the cruise. The conference room was not very comfortable because of the seats and the noise from the group next door.
I sailed with my 9 year-old son. He was not impressed with Club Hal and staff. He made 2 good friends on board and spent most of the cruise hanging out with his friends away from Club Hal. There was always plenty of room in the pool and hot tubs. The pool seemed heated which which made for comfortable swimming.
My son broke his arm on the ship while playing soccer. The medical clinic and crew were wonderful. They checked on us several times during the cruise, making sure he was doing ok and didn't need anything.
Wonderful large balcony which faces somewhat aft and blocks most wind. Balcony chair and ottoman very comfortable. Cabin was large. Shower was large, but no tub. No couch. 2 uncomfortable dining room style chairs. Could hear elevator tones occasionally. Please see youtube video on Nieuw Amsterdam cabin 6052.