The four of us- me, wife, and 12- and 9-year-old daughters- are taking a couple of days in NYC before Thanksgiving. Right now, we're booked at the Westin TS, in a Premium Deluxe Room. Is there a big difference between the Premium Deluxe Room and the Grand Deluxe Room in terms of space? We usually don't crowd into a hotel room together, preferring to stay in apartments, so a little extra room would be nice. Thanks in advance for any knowledge.