I'll quickly list the reasons why this is an excellent place to stay, and provide details later on for those who are interested.
1. Giannis is very fast on responding, great communication.
2. The location is very close to restaurants, bars, even a small shop / kiosk for everyday needs. It is also very close to the harbor.
3. The place is freshly refurbished (May 2017).
4. This place can host many people and has some great opportunities for large groups.
So, the details. This place is recently refurbished. It has four levels: bottom floor with a kitchen and oven/range -- plus room for a bed, next floor with a bed and bedroom, the floor above that has yet another bed and bedroom, and the highest floor has a sleeping space (with an air conditioning unit) which connects to the roof terrace (which has great views of the nearby church and mosque towers, plus a slightly obstructed view of the harbor. Plus, that sea breeze!).
The furniture is all new and even with my sometimes sensitive back, I had no trouble sleeping. Fresh linens and towels, a very easy button to press for hot water for a shower (there are two showers, one in each bathroom). There are bars and nightlife very nearby, but I had no problems getting to sleep, nor staying asleep. A very large fridge (1.5 meters tall or so -- with a freezer), plus an oven and range are available should you wish to cook for yourself (but why would you with so many amazing dining options in Chania!??!?). I could not have felt more welcome, nor could the host have been more attentive.
Watch your head taking the stairs if you're tall (185 cm, or 6 feet or taller).
A bargain, especially for larger groups, in a very central location just a very short walk from the Old Venetian Harbor. You even have the option of parking just outside the place, which is heavenly, considering the fiasco that can be parking in Chania!!
In short, if you give this place, and Giannis a try, I don't think you'll be disappointed.