not in the right forum for my answer but just back from can pastilla and looked at a alpharoom transfer from airport and back
they wanted 25 quid each way ..got a taxi in the end outside the airport 15 euro each way ..bit of a difference isnt it

have normally hired a car ,twice from valencia ,twice from alicanti

Always hire a car - has always worked out cheaper (or around the same) or us. Going to Beni next week and the car hire for a week from Alicante worked out at £62 for a Renault Clio.