We are flying into Pisa in April. Are the taxi's at the airport reasonable? Are they on a meter or a fixed fare to Viareggio? Are we better off (price wise) booking a car on line? We arrive on a Saturday and depart 8 days later on a Sunday. Car services on line show Euro 133 for the round trip. Is that reasonable or should we take an airport taxi? Is there any other car service? Thanks!