We spent a good time in this place. Many trekkings can be done directly from the flat and you can find a lot of supermarkets around but no restaurant opened in april in Katavati ( about 15 minutes walk from Appolonia).
About the flat :
Positive points : confortable beds, kitchen tools, washing machine, maps of the island
Negative points : NO BREAKFAST, no wifi, very humid and not very clean
Katerina is helpful, she organised the taxi for us and was flexible for check-in/out.