The good:
1 - Surprisingly, the food was excellent. We went on the Queen Mary 2 last year and the food was very average. So we booked Radiance with low expectations. The Asian, the Italian and the American steakhouse (we went twice) all of a high standard. Only ate lunch in the main dining room once, which was perfectly fine.
2 - Our balcony stateroom was clean, quiet, well laid out and serviced twice a day by a charming attendant with a skill for making hilarious towel animals.
Perfectly positioned with an overhang above giving shade from the hot sun.