Ash, you'll like this Hyatt. We stayed there when we disembarked after FUN 3. It's great and nice location.I doubt you'll want to rent a car. Like NYC, there's tons of public transportation and a car may be more of a liability with scarce parking $$$.
We may likely go up early as well staying with our San Jose family. Maybe we'll be able to get them a visitors pass to come on board on Saturday.

JoAnn, We're staying 4 nights in NYC visitingTom's family and friends since this is where he grew up. We're staying at the Holiday Inn Express on 45th Street in Midtown (good walkable location) using IHG points/free anniversary nights.