The Oasis (and its sister ship the Allure) are amazing ships that have really pushed the boundaries for cruising. These ships are all about having something for everyone, especially when it comes to multi-generational families. From the little kids in the splash pool, all the way up to us seniors (58), it seems like everyone can find their niche and have a great time.
My wife and I sailed on the Allure last summer with low expectations, thinking that a ship with so many passengers would seem like a cattle car. We were pleasantly surprised at how well planned the ship was, including the embarkation, main dining rooms, specialty dining, entertainment, and deck areas. We liked it so much that we booked the Oasis this year, and again we were not disappointed.
The solarium area restricted to those 16+ with two hot tubs and a tranquil pool, the specialty restaurants (Giovanni's, 150 Central Park), the main dining room, the high-quality shows (Hairspray, the aqua show, ice show, and Come Fly with Me), the running track (biggest afloat), and the lap pool in the mornings.
Also being allowed to bring two bottles of wine aboard is a huge plus (we splurged on some great Bordeaux that you'd never find on board, and would be twice the price if you could).
The electro-thump of the sound system (both live band and DJ) on the pool deck was so loud in the afternoons as to be annoying, hence our escape to the solarium. The solarium is quite warm in the midday sun, so sometimes you'd rather have a poolside spot in the shade. I know it's a generational thing, but we don't remember the Allure being so loud. Even when the captain would do his updates, the sound was so loud that you really couldn't understand his words.
Also, while we enjoyed our dinner at 150 Central Park, we were led to believe that the extra $40 per guest charge included the wine pairings; there's nothing on the menu posted outside the restaurant to indicate anything different. That's NOT the case- the wine is another $75 per person! No thanks...I would have been much better off bringing a nice Bordeaux of my own. Next time we'll know.
Lastly, you will not mistake the cabin balconies for those on Holland America or other premium lines. No lounge chairs for you! What you get is two upright chairs and a round table, good for room service breakfast and an evening cocktail, but not much else.
St. Maarten is one of our favorite Caribbean ports. We always rent a car (we found Arthur's Car Rental just outside the cruise terminal years ago, and they are always friendly and less expensive than the majors) and set out on our own. There are many secluded beaches on the French side to visit, and we always end up at the Sunset Grill by the airport runway to have lunch and a few beverages, and watch the planes come in right over your head. Great fun. Just allow plenty of time to get back to the ship since traffic can be slow if there are several ships in port.