My friend and I stayed at Hellen and George's place for three nights and it was amazing experience. Hellen helped provided transportation to and from the airport and it was on point and extremely easy. George also helped us set up transportation for around the island ( we rented an ATV) and although it was a last minute decision we got it in within a short time.
The location of this apartment is bit far away from a lot of places, but I recommend renting a mode of transportation as it will make traveling so much easier and simpler. The apartment was very nice, it had a wonderful view of the monolithos beach and the garden right outside was just beautiful and there was daily cleaning services which made the experience much more enjoyable. The location is quiet and very tranquil place to enjoy away from the tourist location. There is also a tavern right around the corner of the apartment that serves the most delicious food on the island and the owner Takis is a great person to talk and he also knows George so its a very inviting place.
Hellen and George are always on point and are always reachable and either in person or via electronics. I will definitely come back again and stay with them !!