It was a good experience stay. A compact apartment at very nice location. 1 min to Galata streets, many local shops, cafes, tourist places. Closest cafe is 30 sec from the door. The apartment is downstairs from the main street, makes it more or less safe and calm place, keeping in mind that generally the apartment is at one of the busiest city places.
Check-in is good, smooth, but I would highlight the building main door quest: entering correct door password makes it play a "wrong" sound and door remains as it is, however you should push harder the left side of the door and it opens.
The room itself is quite nice, equipped with everything you need for a short-medium stay. It's very compact, I would say for maximum 2 people.
Hairdryer was broken a bit: only cold air. Small kitchen is combined with a shower and toilet, as per pictures, makes it feel unusual for the first time. Related to bad comment about cleanness: combination of 1st floor (basement) and common kitchen/shower makes it feel high humidity. Use floor rag, slippers and open window. Generally for August 22 I would say it was good experience as for us, backpackers style traveler.