My wife and I are in our late 40s and our kids are 15 and 12. We have sailed Carnival 2x [once before kids] and Disney 1x. Found the cruise excellent. We were a little worried because we have read and people have told us that this was the "party" ship and people would be running the halls all night long and there would be many sleepless nights. WRONG!!!! Yes it was a party ship and it was great but when we went to our cabin the halls were quiet. We ran into several toga parties but all were on the party decks at the top of the ship.
We did not buy a soda card, as on the top of the ship there was a tea and coffee station so we used that. If we wanted a soda we usually just bought one. I think we bought a total of 3. Both my kids really enjoyed the clubs even my 12-year-old who is kind of shy.
We found the shows very entertaining especially the Beatles tribute. The last show was very average. I would have expected something a little bit better especially for the last show of the week. Our room was a room with an obstructed balcony view on deck 5.