Reyhane is the nicest person ever. She helped me throughout the trip from my arrival to my departure. At my arrival, she invited me to dinner with Tarik her husband (a wonderful man) and we had a great time together. While at my departure, we went to the shore, had a pleasant chat around a cold "Churchill" and ended up preventing me from missing my flight by accompanying me to the "right" bus station in a scorching midday heat.
The apartment is great, cleaner than anything possible, close to all amenities, and located in Kadikoy, a dynamic and young Istanbul neighborhood. I really recommend strolling around it, to see what Istanbul inhabitants' lives look like.
You should definitely try visiting Istanbul with Reyhane. ;) It is a must :D