I just spent one night on Grandeur of the Seas, along with many other Baltimore-area folks invited to see the ship post-refurbishment and post-fire.
I found her to be in great shape.
I was in a Category M (no-window) room in Deck 2. This room is 136 square feet. It's small. The newer ships don't have rooms quite this small. The twin beds were put together into a king, which meant one corner of the bed was flush against one of the bureau drawers, making it necessary to step over the corner of the bed to walk next to it on that side. The shower is quite small, too, with a fabric shower curtain that adhered to the shower's occupant with every turn!
Other than the small cabin, I found no fault with the Grandeur during my limited stay. The new aerial show in the Centrum is excellent. The food was delicious. Dinner was shrimp cocktail and duck, both of which were very tasty. Others at our table had filet mignon, salmon, lobster tail and seafood brochette, all of which looked equally delicious. We got to sample food from some of the specialty restaurants, Izumi and Chops, and loved the samples.
Grandeur is a very manageable size, with lots of elevators.
My favorite area on Royal Caribbean's ships, the Solarium, was comfortable and quiet. The old pizza/hot dog/hamburger corner in the Solarium has been replaced by Park Cafe, offering a bigger variety of food. I enjoyed the Windjammer, as usual.
The Palladium showroom was comfortable with great sight lines and acoustics. There was a special appearance by a group named Mo5aic, which was very enjoyable. The casino was smoky as I walked through it. There is a lot of attractive and comfortable seating along the sides of several public deck areas.
There were things I could not experience due to lack of time. I would absolutely sail Grandeur on one of her regular itineraries, but probably not in a minimum inside cabin again.