We booked the place last minute, literally the night before, and Anastasia was very responsive to accommodate us and give us details about the place. We stayed in the Thira apartment for two nights. The place is very spacious and airy. The amenities are great, the place is very well equipped and the fruit bowl and water are a lovely welcome touch! You have privacy inside and the apartment comes with a private table and parasol, great for breakfast! As you know you share the pool area and so it could be a little noisy..
We suggest if you consider going to Santorini that you get yourself some form of vehicle, you can get around without one, but you'll lose time waiting for the bus and it's not a walking place.