From Naples airport it's possible to arrive by bus to the Central Station and there to take train direction Villa Literno and stop in Albanova station.
From Albanova/San Cipriano station to the hostel there are 20 min. walking, 5 min. by car.
From Rome to Naples, it's possible to arrive in 1 hour with fast train service (from Roma Termini Station to Napoli Central station), or around 2 hours by car.