the ferry ride across to Symi was fine, the staff were friendly, the boat clean, it takes just over an hour, there are no refreshments available. on arrival in Symi we had no idea what we were doing, we were told to board a bus to go to the monastery, no idea which bus! we found it eventually and were immediately whisked off on an hour long bus trip to the monastery, we had only 25 minutes there, we had to find something to eat and find the WC [which is something i never wish to experience again, a hole in the ground] no time to look around the monastery, back on the bus, back down to the harbour and then 4 hours in Symi, which while beautiful, lacks anything to do other than eat or climb steep hills to reach the town above. Symi harbour is a tourist trap, over priced restaurants and souvenir shops. Symi is worth seeing, I am not sure you need to do a full day trip though.