We picked this cruise for the ports, five if you don't include PR. Grenada and Dominica were new ports for us, we had a good time drinking rum on the docks with the islanders in the straw market. Since you shouldn't cruise to the islands and not hit the beach we did that in St. Lucia.
None of the people in our group had ever been on Norwegian before, though all of us have been on many cruises. From the balcony rooms down we thought the cabins were tight, with not even enough room to round the bed without sliding between it and the drawers on one side and a dropdown bed on the other.
Entertainment on the ship was good from Atrium bar to the Stardust theater, although the parties on deck didn't seem to have the energy of other lines.
I brought it up above that the cabin was tight to the people in our group. The cabin was ok, but it was just your basic cabin. With the bed in double mode you couldn't walk around either side without having to scoot by something.