We cruise once or twice a year usually on Princess or Carnival, the reason we decided to go on Norwegian is because we wanted to try out a new ship and since Bliss is a brand new ship it made our decision very easy.
We were traveling with two children 3 and 11 months so we had a stroller. Bliss only has 16 elevators on average about 10 elevators less then any other ship we've been on with less passengers so to get on and off the ship or between the floors every-time took very long time and was very frustrating.
The garden buffet had a good selection but several times we've encountered food to be under cooked. Dining rooms took forever to get your food (we were a party of 9) but still it should take hours to eat. Special dining were the worst, not only it took forever to get your food but we got food poisoning TWICE in two separate restaurants (not just couple of us but the entire party). When my kid was trowing up the next morning the manager approached us took our information but nothing came of it.
Through out our years of cruising the service on Bliss was horrible. Not sure if crew is overworked or there is something else going on but they were rude, unresponsive and service was just slow. It is like you were asking them for a favor every-time.
EVERYTHING IS EXTRA on the ship, I was surprised that the water slides were free since they were charging for everything, also if you wanted to go to some shows or restaurant you had to reserve ahead of time. The first day we got on the boat everything was already reserved and we had to get on a waiting list for most of the activities.
Also there is not that much open/roaming areas on the ship, it seems that they tried to put as many state rooms on the ship as possible.
Was ok, smaller then on other ships, had a nice size bathroom but i wish the closet was designed different. It was right next to the couch and getting to it was tough.