Jackie offers a transfer from the port which i'd recommend, she gave us a good lowdown of the island and got the chance to ask lots of questions.
The apartment is lovely and perfect for a couple, beautiful postcard views of the hillside and sea - however is is worth noting that the apartment is almost too well located as you do have to battle hordes of Japanese tourists all after the same photograph (ie your view). This would not deter me from highly recommending this apartment to anyone who wants the Oia experience. For us 2 nights was about right.