Saw quite a few posts on this but they were fairly old. We will be arriving at JFK next Tuesday at around 11 am and staying mear Herald Square, there will be 2 of us with 1 medium size suitcase each. Would be convenient for us to take the AirTrain and the LIRR with our luggage, if so would be easy to walk from Pen Station to Herald Sqaure? Thanks in advance!!