Huge veranda, 2 full size loungers and 2 sitting chairs will fit comfortably, views are beautiful from the back (backed into St. Thomas and Castaway Cay), excellent location for kids club, Cabanas, walk to WD Theatre was easy, plush bedding, connecting room was no issue with noise.
Lots of soot from smoke stacks (stateroom host cleaned it up daily), lots of exhaust fumes while sailing (especially at night when at higher speeds and we couldn't enjoy the veranda on several nights), while in port you could smell smoke from balconies on other levels, the balcony was too hot to use on port days and we are used to humid 100+ degree summer days.
Neutral - quite a bit of continuous vibration at night when traveling at higher speeds (mostly on 6th and 7th night). It didn't bother us but it might for sensitive sleepers, room was smaller than on classic ships but not enough to make a difference.
Final thoughts - the extra balcony space was nice but not sure it is as coveted as I once thought since we couldn't enjoy it several nights due to the exhaust. For the savings, I feel like I would have enojoyed a category 9 room just as much and not dealt with the soot and exhaust.