I did sail on one of Oasis' travel agent preview cruises and while I liked the ship, I wouldn't recommend it to everybody. When we were on the ship was only half full, so very few lines; I still can't imagine sailing on her though when she is completely full.

I left an item in my cabin on Oasis and we were in the Boardwalk area of the ship. I decided to run back to the cabin and get it, on most ships that's a five minute round trip. On Oasis it was a 20 minute excursion.