We cruised in one of the aft suites a few years ago on the Jewel, which is a sister ship. There was a slight vibration that permeated the room from the engines/propellers when underway. We didn't really notice it until the engines were stopped in port and the lack of it was apparent.
As far as entertainment, https://www.ncl.com/cruise-ship/pearl/whats-on-board/Entertainment