We traveled on the Allure from 8/12-8/19/2012. We were a party of three males (Dad and two sons ages 18 and 13) in an interior "special needs" cabin on Deck 6. This cabin was wider than a standard interior cabin and the bathroom was also larger. Even though we didn't require a wheelchair, we were still allowed to book this room upon completion of a medical form detailing the disability. Deck Six is an idea location as it's close to the Promenade, theater, spa, boardwalk, etc.
First of all, we are experienced cruisers. We have been on more than 10 cruises on various cruise lines. This ship is by far the best one we have ever been on! It's ultra modern and loaded with state of the art amenities and activities. As others have commented, even though there were 6000 passengers, the ship is so big is still did not seem crowded. The reservation system appears to work well so people don't just show up expecting to get a good seat at the last minute. Every event we attended was "sold out". The quality of the entertainment was top notch as well. All of the staff were polite and professional. The cruise director Ken Rush was very good (and funny) too.
As for the food, we did not have a bad meal. We ate dinner in the main dining room each night (except one when we went to Chops) and they had a nice assortment of options on the menu and you could request as many dishes as you wanted. My kids especially enjoyed the lobster night! In terms of ports of call...the private island in Haiti was nice. They had many outdoor activities to choose from (for an extra fee, of course) including a roller coaster, zip line, wave-runners, etc. In Jamaica, we chose to just walk around the shops but we were bombarded by so many peddlers we went back to the ship early. In Cozumel, we arranged an ATV/Beach excursion through Wild Tours and it was very good. I recommend you give them a try. Just make sure you don't have a bad back or you'll definitely feel the pain. The local time is an hour behind the ship time so make sure you arrive at the right time. We ended up being an hour early!
The Allure also had a huge casino and we actually won money on both the slot machines and table games. Several other people we observed winning as well. It terms of "negatives", there were only a few but these are present on all cruises such as how you have to "pay extra" for everything such as soda, ice cream, photos, some restaurants, excursions, etc. These "extras" can add up very quickly too! In my opinion, with the rather steep price of a cruise, one should not have to pay for basic things such as sodas, cupcakes, arcade, ice cream, etc. As for the gratuities, I also think they should be included in the initial price of the cruise. Having to pay several thousands of dollars for the cruise and then have to pay tips on top of it seems excessive to me. Overall, we really enjoyed this cruise and would not hesitate to go on the Allure or the Oasis of the Seas in the future.