Myself and my wife are in our mid-30's. Two daughters 6 and 8. Was our first cruise except for a Princess cruise in Alaska. (We did not like Princess at all).
Quantum was really good. I am extremely picky and a complainer and i could not find much to complain about. Anything i don't mention means it was realllllly good! I feel bad for the transatlantic cruisers and the 2/3 day cruisers. this ship cannot be explored and conquered in 2 or 3 days and that first voyage must have been very understaffed and not ready.
Embarkation - a little confusing, but not painful and we got on the boat around 11:30am.
Cabin was great. was 4 of us in the room (pull out couch for the 6 and 8 year old daughters). a little tight but not worth spending a lot more for another room or bigger room. Bathroom was nice. Room had plenty of storage. The cabin attendant was a very nice guy. Only 2 complaints. Internet access was awful in room and the bed was too hard.