First let us say that we realize some people are loyal to cruising on just one line and we respect that. However we are not that type. We tend to look for value then we cruise & compare.
There are some good things about the Oasis itself. Big ship, lots to look at, good shows, big TV's in cabins, really good check in/check out procedures.
After that though the wheels sorta fall off. Unless you get a suite the cabins are tiny. Get that vibe HUGE SHIP (tiny cabins).
Central Park balcony cabins are quiet with calm peaceful views but seem extremely small overall. The bathroom and the shower can only be described as tiny. They do have nice large flat screen TV's... looked to be perhaps a 32".