I've stayed in Giannis' place with my girlfriend for one week. The place is competely new, I think we were one of the first guests. Everything is super clean and new. Apartment is exactly like in pictures and even better. Giannis was very warm host and he gave us a ride from and to the airport and besides that gave us good tips which beaches to visit and was very fast to respond to any of our requests during our trips. He gave us extra towels and anything we needed.
Location is very close to the city center, around 7-8 minutes by car. At Giannis' place you have a parking, so you don't need to worry for that. I would highly recommend this place for it's location, cleanliness, quality and comfort. If I come back to Mykonos I would surely stay at this place again.
Thanks again Giannis!