Mert was super responsive and the apartment is quite nice.
Having a washer is great.
The area is not so nice, I would not stay again in this part of Istanbul. Way too many cars, difficult to get around due to tons of people like in Hong Kong and exhaust fumes from the cars. Sultanahmet is nicer and only a bit more expensive.
And there is cigarette smoke everywhere. On the street, in the restaurant, in the building. It's an Istanbul problem.
WiFi was not reliable unfortunately for remote work.
You need a coworking space or have more luck.
Mert did everything possible to fix the WiFi and some other things and was super approachable and responded very quickly.
There is no gym in the building / no private gym, other than advertised.