I totally agree it's well worth it, I once met a couple who were staying in an all inclusive in Olu Deniz and who just happened upon the water taxi while strolling along the harbour. They had to try it and on the boat they got chatting to me, they just couldn't get over the value and beautiful views. They had lunch on Calis front and came along to Sat Beach for a couple of hours, they said it was the best day of their holiday. They planned to go back for sure!