I spent 50 days on the same Celebrity cruise ship in 5 different rooms. Here's how they compare, and which is the best value
The deluxe ocean-view room offered more space and a larger window.

A cut above the regular ocean-view cabins, the deluxe room size took us from 171 to 242 square feet.
In comparison, this room felt massive, and the (slightly bigger) window provided outstanding views of the sea. The bathroom was similar-sized to the other classes, and the bed and vanity appeared to be the same.
It was nice to have space for in-room yoga and additional chairs that I used to host friends in the room.
These typically cost about $100 per person more than standard ocean-view cabins. Though it was a pleasant week, I am not convinced the larger room and window are worth the extra cost.
The veranda room featured an outdoor balcony.

On one voyage we stayed in a standard veranda room, which is also commonly referred to as a balcony cabin. It was slightly longer than the previous staterooms, but at 175 square feet, it was not as large as the deluxe ocean-view.
The setups were quite similar, though I liked that the outdoor balcony added another 40 square feet for relaxing.
The best part of a balcony room is the access to fresh, salty air. I loved leaving the door open to hear the waves lap against the side of the ship.
Again, prices can vary, but I've seen balcony rooms on this ship cost about $300 more per person than a typical ocean-view cabin.
Our bathroom looked the same as it did in the other rooms.

The bathroom and closet we had in concierge class resembled the ones in the other rooms. All of them were simple and functional with a good amount of counter space and a decent-sized shower.
However, our bathrobes in here seemed to feel more plush than the ones in the regular cabins — but maybe we just imagined it.