We stayed 2 nights and had a wondeful time staying in this fantastic place!
Location: the flat is right in the heart of Heraklion's pedestrianised old city, with easily hundreds of restaurants and night life within a very short walk. It's also a ~10 minute walk to the beautiful old Venetian port
The space/amenities: the building itself doesn't seem like much, but the flat was absolutely stunning. It is large, comfortable, and extremely modern with excellent amenities/appliances and huge windows. There are great soaps (a very nice touch) the kitchen has everything we might need. We would have been very comfortable staying there for a long while! We forgot to read the welcome packet, so we thought there was a problem with the hot water and messaged Michalis in the middle of the night (and got a very quick response!). However, all was fine. The lesson: read the welcome packet!!
The host: we never met Michalis in person, but he was very communicative and helpful and gave very clear and accurate check-in/check-out instructions. He was also very responses with messages. He offered to answer any questions we might have about the area, though we never took him up on it.
All in all, a great stay in a wonderful place at a fantastic price!