Small well-renovated studio with a nice big bed. The whole small building is apartments with a reception next door.
The kitchen area has enough plates and pans and a gas top, but zero counter space. Cooking is possible but inconvenient.
The location is close to Taksim square, just a 15 minute walk. Unfortunately, the walk is mostly uphill, and the neighborhood looks pretty run down. Never had an actual problem though. Easy to find cheap food nearby and a grocery store is right next door!
There's no washing machine in the unit. The one downstairs is often busy with the linens, but it was always possible to wash clothes.
In the winter gas heating is adjustable and works great. Hot water needs some getting used to. Just keep the flow open and let the temperature stabilize.
At night the bathroom was visited by some slugs. When owners tried to poison them, 3 big black roaches died instead. I didn't see them even once before they died, so maybe they just came from outside.