We stayed only for one night at Giannis place but it was definitely very pleasant experience!
The apartment is clean and perfectly located - the bus stop is just in front of the house, cafe's, restaurants, local market and old town is just around the corner, seaside is not more than 10min by foot. The apartment is very modern, has a nice balcony, air conditioning, all necessary utensils and in general is very cozy and well-decorated.
Giannis is a very helpful, friendly and kind host. Before arriving he answered all questions, gave us recommendations on what to see, where to eat, etc. in Heraklion; already on the day of arrival he sent the instructions upon our accommodation that were very easy to follow, he also greet us and showed the apartment, you can contact him any time regardlessly.
Just one thing, if we would have stayed for a longer period of time, maybe we would consider the price to be lower, but since it is high season, we understand the current price rates and it was not a problem at all for us since we stayed for one night and definitely enjoyed the stay!
All in all, could not say any bad word about the whole experience and Giannis. Totally recommend! :)