We had a fantastic holiday. The apartment was exactly as described and we really enjoyed the sea-view balcony. The bathroom has just been renovated and is more modern as compared to the pictures online.
Alexis is a great host. Check-in and check-out times were very flexible and he responded to all questions in less than an hour.
The location is good. Kalathas is a small village about 15 minutes from the airport (about 20 Euro by Taxi). There is a supermarket at the end of the road which is equipped with everything you might need. It takes about 10 - 15 minutes to walk to the beach. There are two restaurants close to the beach. As we were there in May, which is still kind of off-season, one of them was closed.
You can spend a nice holiday in Kalathas witout renting a car, especially if you want to cook for yourself or don't mind eating in the same place for a week. The beach in Kalathas is one of the most beautiful ones in the area, so there is no need to drive anywhere else if you don't want to. Nevertheless, renting a car allows you to explore the surrounding villages and the area and gives you the opportunity to choose from a wide variety of restaurants (in Kounoupidiana or Chorafakia). We decided to rent a car after a couple of days, but as I already pointed out, there is no need to do so.