Fairly easy is a relative term. Getting from the hotel to public trans might be the issue. Some hotels drop you at Federal circle while others drop at the terminals. From FC you have the choice of LIRR @ Jamaica station to Penn sta or the A train @ Howard Beach. I don't know how happy the hotel shuttle would be by using them for other than airline to hotel purposes, although it is NY so a tenner might make them smile. Personally I would just hang at the casino, eat at Wolfgang Pucks and get to bed early.