To put it simply, this place was awesome! I really enjoyed my time here, and I didn't want to leave! The place is very comfortable and fairly spacious as studios go. The air conditioning worked well, bed was comfortable, WiFi was reliable, and everything was extremely clean. The best part of course is the location. You simply couldn't get a more central location in Chania's old city. You can walk easily to a large variety of shops, restaurants and bars. Pretty much everything is within a 15 minute walk. The area right in front of the place is pretty touristy and busy but still very pleasant. In fact on the first day I was worried that it might be noisy at night (I'm a light sleeper), however it turned out that the walls and glazing of the building were quite solid and I could barely hear the noise at night and was able to sleep well easily.
John himself was very friendly and helpful as well. Although he wasn't there personally when I arrived, we spoke several times on the phone, and exchanged a few emails. He was readily available whenever I had any questions or issues. He arranged for his father to let me in, so check in was extremely easy on arrival. He even sent me a lengthy and detailed email of restaurant and beach recommendations, and things to do on the island, all of which proved to be quite accurate and good advice.
Overall I really loved this place, and I enjoyed my time here immensely. I even stayed an extra night I hadn't planned on, and I would have stayed longer if I could. Honestly I can't fault anything about the place at all. Not a thing. So... if you're looking for a place in Chania, look no further!