This was our second cruise on the Sunshine. We are Platinum level with Carnival. Having sailed almost all the class of ships in the Carnival line-up, the Sunshine has found the set spot.
The 2.0 upgrades fit perfectly and the problems with the larger ships aren't as present.
The Serenity area is well designed, perhaps the best in the fleet. The ship was clean and still holding up from the most recent dry dock.