Stayed in aft cabin 4176 on a surprise for DW's 60th. Had only cruised with Celebrity before this, but this cruise worked out best timing wise.
I want to make a disclaimer with an overarching point: If you can't be happy and enjoy yourself on a cruise, you just ain't trying. This is an awesome way to travel and a privilege to be able to do so. I really appreciate all the planing and work that went into making a cruise like this possible. The criticisms that make their way into my points below are just quibbles. I get it that I have just been treated very well and am very blessed.
We had cabin 4176. The aft cabin location may have been the best thing about this cruise, other than Alaska itself. I had read complaints that the engine would be too loud or the vibrations too much. Not so (though could hear and feel it sometimes). Remember that the dining room is in this area too, and lower and closer to the engine that the cabins are, and the dining room is OK with respect to these issues. Some feel that this end of the ship rocks too much. Though I have a tendency to sea sickness (and carry scopolamine patches with me for this reason), I felt fine compared to walking around rest of ship (and never needed my patches). I had read that soot gets on balcony. Yeah, some, but not enough to matter. The view of the wake and the 270 degree view of both port and starboard were super. And, the sound and changing waves of the wake was like sitting on a beach and experiencing the changing sight and sound of waves; became mesmerizing, sitting before a log fire. Sitting on our veranda with same view the historic sea captains of old would have had from their quarters gave the feeling that the cruise was somehow privately here for us. In fact, a channel on the in room TV gave exactly this view 24/7. I'm totally hooked. (and, ruined -- these are hard to get!)
Comfortable beds and big comfortable pillows. Lots of space and appreciate several things about layout. The metallic walls allowed magnets to hang things up. Art on the walls was a nice touch. Layout of lighting was good and effective and liked having switches by bed. Extra chair and fold out couch gave good sitting room. Small desk was adequate. TV worked, few channels to choose from, and did not care. Veranda had two comfortable chairs one with stool, a small table, and a recliner. Storage was abundant and very well conceived. My wife and I are one bag each travelers so we did not need a lot, but nice to have had it. Even the stool for the desk is hollow with a top that lifts to use the inside space for storage. Can store several bags under bed. Three standing closets, one with lots of shelves and a locking safe, and the others for hanging clothes each have larger shelves that can fold down or not as you wish. One even had a rack for belts and ties. Several shelves in bathroom too, for toiletries. Shower with good water pressure, massage head, and was a tub-shower mix. Clothes line for drying clothes over tub. Cannisters of self serve shampoo, conditioner, soap in shower worked well. Room decor and materials a bit dated and worn, but everything very clean and working well.