My wife and I are in our mid-sixties and have been on 24 cruises. We very much like the NCL Free Style cruising concept. We took the NCL Jade in February to the Canary Islands and loved it. It's nice not having to bring a jacket and tie. We very much wanted to do the Epic, the 3rd largest ship at sea (for now). It did not disappoint us, and lived up to its name. 21 restaurants, 19 bars, so little time!
The boarding process was seamless, considering the amount of people they had to board. Very organized with two boarding points.
The cabin was a mini-suite. I can understand why some people may not like the shower/commode/sink placement, but it didn't bother us. The cabin was spotless, and the in-room TV met our needs with one movie channel, a TV show channel, news, and ship information, including access to your account and dining reservations. There is plenty of room for storage. My only complaint is that the bathtub in the mini-suite is very dangerous as it is so slippery. There are hand-rails, but I almost took a few nose dives getting out. I suggest that they put in some no slip strips, or provide a bath mat.