My wife and I are around 40 yrs old and travelled without children - for those looking for a romantic vacation like us - we recommend stay away from the conquest. The ship public areas and facilities are far too small for the 3000 passengers they pack onboard. This ship is the same length as the spirit class ships which only hold 2000 passengers.
We always had to hunt and circle to find empty loungers around the pool - one time i even untied a stack of loungers and broke them down so we could have a seat. Children run wild and free around the pool decks, the hot tubs are more like kid stew than kid soup.
Essentially all of the bars are on deck 5 - these bars are no larger than on the 1500 passenger holiday. My experience on our four cruises is that karaoke has the highest attendance. The conquest has karaoke in a bar that according to my wife is the size of the kitchen and living room in our 2000 sq ft house - i seriously doubt there is seating for 100 people in this bar.
There is no room for the nighttime special parties that are planned like the mardi gras parade which ends up in the hall way at the casino - i guess the conquest staff planned for only 20 of the 3000 passengers to show up.
We were never able to find decent seats in the main lounge for the shows even though we went 15 minutes before start time
The food in the lido restaurant (except breakfast which was ok) was awful. The lines were long at all the food service stations and at least one each of the coffee, tea and ice cream machines was always out of service which lengthened the lines even more.
Our cabin was directly above the subwoofers in the main lounge - the vibrations were so strong it was painful.
Unless you want to be in a big crowd and stand in lines, stay away from the conquest.
Carnival could do alot to ease the crowded situation by improving their event schedules and better controlling the free roaming of children - we saw 9-10 year old boys on the topless deck
I think a lot of people like us use these reviews to pick the best ship for their needs - As i've said before we've been on 3 previous cruises and this ship was by far the most crowded in the public areas.
The ship appearance was fine - but we did occasionally smell raw sewage walking around the ship. The room steward and waiter were very good but we never had anyone from carnival ask us if we were enjoying our stay while on the ship.
This is not the ship for people like us who want to get out of your stateroom, enjoy activities around the ship, dance and enjoy some relaxing time - it's just too crowded.