Our experience was heavily influenced by Norwegian putting our luggage on a different ship. Can you imagine? We unloaded it in front of the Dawn and they dragged it a few hundred meters to put it on Jewel. Everything was clearly marked, so this was clearly their fault. And this was my biggest problem with this ship/company(?): it is poorly organized, even silly, and the only effort that they put into is to squeeze as much $$ of you as possible.
Other than that, we didn't like too many aspects of the ship to enjoy the cruise. Just a bunch of pleasure-killing things: While other ships were docked in the two ports we visited, we were tendering. The tenders were smelly and dirty. The TV was tiny and practically the only channels were ads. The waiters tried to sell you something with the same silly line: when you ordered a glass of wine, you could expect for sure that they will reply "Why do not you order a bottle?" When you hear the same pitch three, four, five times, you may get annoyed. The food in the main rooms was horrible. We checked all of them.
Decent: the cabin was sensibly organized although it was too old to like it. Entertainment was between boring and very good (the Ukrainian pianist was outstanding).
Decent but unremarkable. Tiny old TV.