I'm really glad I chose Fatih's apartment, based on his wonderful feedback and the location. Fatih was extremely responsive and helpful and replied almost instantly to my emails. It took me a little while to find the meeting place because I got off the bus at a different stop, but Fatih was patiently waiting for me, even though I was probably around half an hour later than our agreed time. (If I'd had a phone it would have been easier).
Fatih took me to the apartment, just a few minutes walk from our meeting place and explained everything. He'd left milk, juice, tea, bread and cheese and filtered water as well as maps. He showed me the maps and gave me some sightseeing suggestions, then took me out for a walk to help get my bearings. He even helped me buy a metro token, then delivered me back to the apartment.
Fatih's apartment is extremely central and comfortable. It's small and basic but safe, quiet and clean (not spotless) and Fatih has prepared it lovingly with consideration and integrity which makes all the difference.
Being close to the Galata Tower means there's a landmark and it's impossible to get lost (at least not for too long : )) and I was very comfortable exploring. Make sure you explore in all directions. They're quite different. Everything I wanted to see was either in walking distance (I like walking) or a simple tram ride.
I didn't see Fatih after the initial meeting, but I knew that he was close by and only a phone call away if I had needed anything, which I didn't because he had already thought of everything. WiFi is included.
Fatih is a delightful, thoughtful and considerate host and I would highly recommend his apartment.