We chose this cruise specifically for the ship, Harmony of the Seas.
We made the mistake of choosing a cabin that was on the 14th deck, in the very back, just 4 cabins from the very aft end. The closest elevator was approx. 100 yds towards midship. At 71 years old, that's a hike every time you want or need to go somewhere.
RECOMMENDATION: CHOOSE CABIN TOWARDS MIDSHIP AND CENTRAL PARK (INSIDE BALCONY). It wouldn't be too bad then. Don't hurry your choice of cabins.
This cruise had technical problems with sound and others. They cancelled at least 2-3 water shows and were late with the production of Grease.
RECOMMENDATION: Make sure to get a fixed dining time, e.g. 5 or 7:45 pm. My time dining was a free for all the first night. We were lucky after that.
RECOMMEND: Unless you need all that food for breakfast, go to the Park Cafe for muffins, egg mc muffin, breakfast taco, coffee and teas. It's a lot quieter and faster. No crowds.
We went 12/9-12/15 and it was crowded, very crowded. Lines most everywhere.
cabin steward was great. cabin is approx. 100 yards to nearest elevator. choose another closer to elevator.
Very helpful tip for the Harmony of the Seas: If you have My-time dining and dont have a specific time. If you want to go at 5:15-5:45, go down stairs and stand in line at 5:10 or so to get a no-shows table that the 5:00 reservation people dont show up for. We did that 5 nights and worked well. Whatever you do, DO NOT CANCEL your 5:00 reservation if you have on. If you do, you may end up going at 7:30 or later.