I would be extremely hesitant to spend $24 pp on a Princess transfer. That is an exorbitant rate. How long are you going to be in port? Last year, my wife and I used Ocean Rent a Car and they were fabulous to work with. Be warned that you need to be able to operate a manual transmission and, if you go the cheapest route, you may have to sacrifice air conditioning. When I first received the documentation for my rental, I thought that they had a typo. The paperwork showed me to be getting a "punto". I thought they were talking about a pinto but I didn't realize that Fiat makes a Punto. If you are there in the evening, you will notice that Corfu has some of the best sunset vistas that Europe has to offer.