Second time on Celebrity and the last.
First trip was some years ago on Millenium - hated every minute of that ship so it has taken me some years to dip my toe in again.
We primarily booked the trip because it was the itinerary we were looking for and my cruise agent urged me to give them another go as the 'newer' ships were much better.....
A partial obstructed cabin at the back of the ship which was obstructed by the roof of one of the restaurants.
What that meant was you couldn't see directly down to the sea, but you had a horizon view. We found no issue with this at all and in fact the balcony was a really good size.
We personally liked this cabin, the position and the layout.