I went on this trip with a group of adult family members, 8 of us (4 couples) in total, ages 29 - 58. Overall, I'd give it the entire week an 8 out of 10.
I'm pretty much a 'no frills' guy and usually travel as inexpensively as possible. This was a big financial outlay for us but I'm definitely glad we did it.
Our room/cabin was very spacious and our Concierge Class attendant was very attentive. Loved the balcony! Definitely more space (both in room itself and in bathroom) than on our previous Carnival trip.
Had an almost-constant 'mystery noise' that sounded like running water through pipes. Most noticeable when room was otherwise quiet. Could not hear a similar noise in the other 3 cabins in our group.
I never took the elevators at all and I found Deck #8 to be fairly 'central' both up/down and fore/aft.