My friends and I had a wonderful time at Konstantinos' villa in Istro. The house is compact, downstairs features a kitchen, laundry room, dining table, couch, and a fun hot tub. It opens onto a lovely front sitting area that we enjoyed in the evenings. Upstairs there is one shower/toilet area, with bunk beds and a sink on one side and a master bedroom on the other with a very comfortable bed, sink, and wardrobe. The house has AC, and there are supermarkets within a 20 minute drive.
I'd like to note that Konstantinos and his family were exceptionally welcoming and wonderful hosts. Throughout our stay, they would leave us local sweets beneath our window, or stop by in the evenings with aperol spritzes. When 2 of our friends lost their accommodation elsewhere on Crete at the last minute, our hosts were flexible and generous in allowing them to stay in the airbnb and did their best to make our 2 friends as comfortable as possible.
I would definitely return!
A 15-20 minute walk/4 minute car ride to the nearby beach Voulisma which is really beautiful.