Me and my friend spent 2 weeks at Isa's place. The apartment has new furniture and kitchen utensils. It is located 40 minutes walking from the Blue mosque and main historical buildings and museums in the area. Groceries shops, cafes, and the Fatih mosque are within walking distance. The apartment is on the third floor and there is no elevator, so if you have big and heavy suitcases you have to be ready to carry them to the top. The shower and toilet are separate, and don't have good ventilation, and there is a smell coming from sewage pipes, maybe because is an old building.
Internet was not stable at the beginning, as the modem was shared with others, however, we communicated this to him, and he installed a new modem in the apartment. We highly appreciate this as we work from home and need good and stable internet. Isa was very communicative since the beginning and he responded to our requests and he sent someone to help us to turn on the hot water/heater and check the internet.