We were not disappointed with Radiance, despite it being billed as everyone's favourite ship. My preference is still Quantum class, however for a short break we were not disappointed.
The cabin was immaculate with everything you would expect in an Owner's suite and more.
Dining was excellent, but not better or worse than any other RCI ship we have sailed on. Really enjoyed the main dining room, Giovanni's and Chef's table and would recommend them to anyone.
The cabin was excellent. Plenty of space and all of the little things that go to making a suite experience what it should be, including afternoon canapes.