My husband and I are in our 40's, and traveled with my parents. This was our 10th cruise (all on NCL). We had a great time on the Sun.
Embarkation- very easy and organized. Was on the ship by noon. Everybody heads to the buffet, but don't forget one of the main dining rooms is open for lunch.
Ship- In good shape overall. The layout was a little weird on deck 6 (you had to go through Dazzles to get from the back to the front). We stayed in a "sideways" inside cabin on deck 9. Felt very roomy and lots of storage space!
Great "sideways" inside cabin. Much more room than a traditional inside cabin. Lots of storage space! There were mechanical rooms on both sides of the room, so it was very quiet.