sorry for the late reply.
For reach our Residence located in Marina di Pietrasanta from Pisa Airport there are many ways :
1) Take the train ( or the autobus ) from Pisa Airport to Pisa Centrale and then change from Pisa Centrale to Pietrasanta, then take a bus or a taxi from Pietrasanta Station to the Residence, the total cost would be nearly € 10,00/15,00, totally 45 minutes of travel.
2) Another option is to contact us calling this phone number : +39 0584.267141, and we provide to send you a Taxi.
3) Otherwise you can rent a car directly at Pisa airport.
Hope that your demands have been fulfilled.