We had a really nice stay at Roula's apartment, which was clean, cosy and fresh, and equipped with everything we needed, Roula provided us with clean sheets and towels every couple of days (we stayed in Tinos for 8 days). The apartment is very close to the sea (3 min by foot), and is close to a minimarket if you're missing something. The position in Kionia is great, it's close to Chora (Tinos main town), and is very well connected to the rest of the island. The whole island is quite windy, but it's actually a good thing, it makes the stay under the hot Cycladic sun way more bearable.
Let's not forget Roula, our great host who gave us some great suggestions as to where to eat and where to go to the sea according to the weather (winds). She even helped us rent a car!
Anyway, we had a great time and we hope to come back soon!