From talking with one of the assistant cruise directors, the ship is supposed to go into drydock in December for a complete overhaul. Some rooms have upgrades, but the room I had on the upper verandah deck did not. But don't let that worry you....this is one fine ship even before the upgrades.
We just got back from the Eastern Caribbean - fantastic time. Half Moon Cay is gorgeous - from what i understand, if you want a clamshell or jetski or pretty much any other excursion, it is best to book it thru the cruiseline well in advance as they sell out fast. We're pretty easygoing...a beachtowel on the beach was fine for us.
Tortola is beautiful - we went out on our own to an Island called Jost Van Dyke. Conde Nast says it's one of the 10 most beautiful beaches in the world, and I can't argue - nearest thing to a private island I've ever been on...no more than 20 folks on it (which means there are no ship excursions to it). But I really liked it, not commercial at all and very pretty
If you like shopping, St Thomas is great. If you like beaches, St Thomas is great.
Nassau - crowded, but still nice
As far as the ship - we never lacked for things to do. I was talking to some kids who were in the teen club and they really seemed to like the program that HAL had. I took my 11 year old daughter on this cruise last year and she had a blast in the kids club.
cabin was nice - although is was smaller than the K category inside cabin that my daughter and I had, it was still nice, and sitting on the balcony watching the stars at night was really nice too.
Food was really good. If you like steaks, then you really need to go to the Pinnacle Grill at least once. The steaks were far better there than in the main dining room. You can get into the Pinnacle the first night for $10 per person (instead of the usual $20) . My wife prefers seafood and wasn't terribly impressed with the fish offereings, but the steaks....my oh my!!!
Main dining room still had excellent food and service. Lido buffet was one of the nicest I have seen...they have several "stations" for different types of food (Italian, Continental, Asian - including a sushi bar - and a Deli)...lines were never terribly long there.
I preferred the aft pool area, although there were far more activities on the main Lido pool. The exercise facilities are very good - beautiful views from the windows while you bike or tread.
We loved walking the Promenade deck outside...3 times around is a mile. A real treat is to take a book and get on one of the comfy chaise lounges on that deck...
Shows were good, most of the bars were good with good entertainment, although the gal at the piano bar was a good pianist, she was, shall we say - vocally challenged.
Bottom line, I'd do the Zuiderdam again in a heartbeat, even without the upgrades.