The Aegean Eye apartments were perfect for our 4 night stay in Sifnos. They were easy to find by rental car and only about 15 min drive from the ferry port and 5ish minutes from the main city of Sifnos. Not sure it would have been possible without renting a car though, I didn't see a lot of public transportation. The room was very nice and comfy. Would love to stay there again.