We had the most brilliant time in Syros and Ector's amazing place was the most idyllic spot to explore it from. Kini beach is by far one of the best beaches on the island (and after hiring a little ATV in Hermoupolis to go around the island we can say that with certainty), and Ector and his family were incredible hosts - a lift into town, fresh figs and baking from his mum topped off the lovely hospitality from all of them. The place itself is gorgeous, simply but nicely done with everything you could need plus a huge verandah with stunning views over the bay and little Lotos beach. Ector's father is an architect and designed the house, and you can tell - the layout is beautiful, with the little apartment being very private as well as making the most of the views.
Kini beach and its chilled little restaurants is a 5 min walk, and it's an easy 15 min taxi from the main city where the ferry arrives. Definitely recommend exploring other beaches on the island for a day (Galissas & Delfini were our other faves) and spending some time in Hermoupolis (including walking up through the old town on the hill Ano Syros).
Overall it was the perfect place and one of the best Airbnb's we've stayed in. Will be recommending to everyone, and thank you so much again to Ector and his family for having us!