Beyond the bumper cars and sky diving, I'm actually rather disappointed by this. The whole revolutionary aspect of Oasis was the open central park and boardwalk, as well as the huge promenade. It kinda surprised me to see them dropping them entirely with these ships, as well as dropping ice skating, viking lounge, aqua theater, and the zip line.
However, I do love the 270 dinning room. Of all things, it really amazes me how they can provide amazing views by day and huge theming at night. Just a brilliant combination of food and entertainment somewhat lacked on previous ships.