First, let me say that my wife and I truly enjoyed our cruise on Royal Caribbean's Oasis of the Seas. This ship is a monster but if you do your homework prior to sailing, you will have a wonderful experience. The ship's passenger compliment was about 6100 with a crew of over 2300. While that seems like a lot of people (and it is) most of the time the ship did not feel crowded. The only time we felt crowded was during several parades on the Royal Promenade and in the Windjammer Market Place. Other than that we never felt like there were too many people on board.
We were disappointed with the food and lack of seating in the Windjammer. Usually a great experience, the meats were often dried out and empty trays were slow to be refilled. The design of the ship was fantastic with the exception of the Windjammer. More attention should have been paid to this area. This being said, we only ate there 2 or 3 times during the trip.
Our stateroom overlooked Central Park, truly a novel and fun place to spend time. One evening around 10pm we sat and listened to a piano/violin duo. Just totally relaxing and enjoyable! The Park Cafe was great. They serve a roast beef sandwich (don't ask me to spell it) that is absolutely a must try for anyone taking a cruise on Oasis. The other foods served here are also quite good and it was rarely crowded.
As mentioned our cabin was on deck 9 with view of Central Park. We were very comfortable and the cabin was roomy enough for us. Cabin service was great. Our cabin attendant, Ceon was very nice and took very good care of us.