Yes, Most Airtrain services are equipped with luggage racks. there is space for luggage on the train, most oversized luggage (such as prams, golf clubs, surfboards, and pushbikes) can be catered for. Train carriages also have fold-away seating to accommodate wheelchairs.
Slow and disturbing, have to get off the train after 3 stations and transfer through Bus service to the destination which is Roma Street station.