We were on the Fascination last week!
Worst - we did not make the Half-Moon Cay port of call due to wind and currents (tender boats had problems). This would normally not be a big deal to us, as we love sea days, but in speaking to a number of fellow cruisers, this port is missed quite often. Carnival needs a better plan here.
Best - the reubens were fabulous, as are on all Carnival ships, but the best for us was the 80's Review show. We have been on 10 Carnival cruises, and this one was definitely in the Top 2. DO NOT MISS IT! I think it was called "It Ain't Over Yet" or something like that.
Great ship - The crew was attentive and friendly. Dan (assistant Cruise Director) was better than Jacques (the CD). NOTE - Be sure to order a pot of coffee from Room Service each day. It is a million times better than the Lido deck or dining room coffee, and it just costs a couple of dollars to tip the delivery server! A great way to wake up!
There were a lot of kids on this cruise (wierd for January) and they took up all the pools and hot tubs. There are no Adult only areas (Serenity) yet on this ship, so we never got into a pool or hot tub, and had to search for a quiet place to lay out.