I waffled a bit between a 'poor' and an 'average' review, but ultimately chose 'poor' because there were just too many things that we found annoying for our family of four.
First, the pluses.
The cabins are roomy and in pretty good shape. Food in the buffet was reasonably good (with the exception of scrambled eggs at breakfast, which could always be counted on to be cold). Main dining room experience was good at all three of the MDRs we tried. We also tried 3 specialty dining restaurants (Los Lobos, La Cucina, Teppanyaki) and came away very satisfied each time. Wait staff at the restaurants were good. The musical production of Jersey Boys was really first-rate, and having recently been subjected to the incomprehensible productions aboard Royal Caribbean's Anthem of the Seas, this was an unexpected treat. Comedians were funny. And the unlimited drink package was fun, with good pours and experienced and friendly bar staff. So if your goal from a ship is to hang out among adults, simply relax, eat, drink and be merry, you could definitely do worse than the Norwegian Bliss.
Very roomy and bright, well laid out. Good number of electrical outlets for the various devices. Good shower pressure and temperature.
Visited Epcot, fun day.
Could not tender to island due to high winds.
Nice island, but a bit too windy to really enjoy.