I did a cruise on NCL Bliss last year, huge new ship. My opinion, it was too big. We stayed up in the Haven - 18th floor, and it was a haul to get down to the food options and casino. We are big walkers, but this was a bit much. The elevators were always packed, and even the speciality dining places felt very cramped.

That was my experience, and for our next cruise in 2020 - we went back to a smaller ship - NCL Jewel for an Alaskan cruise.

Have a great time!