This is a great apartment, clean and tidy. Has TV and wifi and amenities to cook food. We were grateful for the aircon too! The swimming pool was smaller than expected and can get quite busy, but as in the description, its a great location, literally a couple mins walk to Kamari beach (pebbled). There is a supermarket a minute away which has everything you need and the local restaurants are fab! You can walk up to the Ancient Thira site (but we took a minibus) there is a bus stop a couple mins away to take you to Oia and Fira, Fira was a 20 min bus ride away (1.80 each way). If you want to get to Perissa and don't fancy driving, you can pay to take a boat from Kamari beach (Hook Bar) to take you over to Perissa beach (sand).
Vasiliki is a good host, she greeted us when we arrived and even sorted out airport transfers for us when we arrived and departed.
I would highly recommend staying here.