We did the Santorini to Mykonos tour. If you are doing the same route i will suggest to stay 1 day longer in Santorini as we had only 1 afternoon there and also the port was not that good and were not able to stay out until late at night. Our group was at the party boat and Minas and Fais were lovely. Yorgos and Ben knew all the good spots in Ios and the pub crawls were great. Free shots on many bars and everyone of our group was easy going. We had to pay for our buses to get to the BBQ on the beach, which we found out last minute. Yorgos told me that the web site says that local transportation is not included, but i believe Sail in Greece should make that more obvious. I would definitely recommend the yolo cruise if you are looking for a cheap and fun way to see the Greek islands.