We recently took the Jewel to Alaska with our two small children (ages 5 and 7), my parents (seniors) and my brother and his wife. This was my 4th cruise and first with Norwegian.
Embarkation: The easiest and most efficient I have experienced by far. It is worth signing up for the free latitudes rewards program as you get to go through a priority line for embarkation. The whole process took less than 1/2 hour (which is especially helpful when travelling with small children). Once on the ship, we proceeded directly to the Tsar's dining room for lunch.
First Impressions: The ship was clean and nicely appointed. It was easy to find your way around (once your oriented yourself fore and aft).
We stayed in a standard oceanview cabin on deck 8, aft. It could accommodate 4 people. The bed configuration consisted of 2 twin beds, one pull down bed and one trundle bed. When the room was made up at night by our cabin steward, the trundle bed was positioned in between the two twin beds. This resulted in the entire width of our cabin being one "big" bed made out of 3 twin beds. Our cabin was interconnecting which was really convenient. Just a quick note about deck 8 itself. Very convenient to get to public areas and dining rooms. Some areas of deck 8 had a faint sewage smell throughout the duration of the cruise.