We like the Oasis Class ships and have previously been on Allure and Oasis. Harmony felt familiar wand is a newer ship so we gave it a try.
It had been about 5 years since our last cruise. We had My Wife and I in one cabin and our 8 year old daughter in a separate cabin. Both ocean balcony cabins were on the 14th deck on opposite sides of the ship (which allowed us to be on an outside balcony on either side of the ship for views.
One cabin (14574) seemed smaller than previous cabins on Allure and Oasis which was a bit of a disappointment. The other cabin (14172) was a disability equipped cabin and was much larger although devoid of a couch and coffee table. There was a small chair and no foot stool in the corner and a small dressing table in another corner. Otherwise it had a lot of open floor space which we enjoyed. The fridges in both cabins barely cooled what we put in them and were not adjustable.
One cabin - 14574 - was small and cramped. Our other cabine - 14172 was handicapped accessible and largish although no couch or table of foot stool.