The place is really cute and warm, at the top of the building (no elevator so not a good option for people with mobility issues).
It is located 5min away from Taksim square, which is a great place to reach transportation and also close to very famous and nice places, also perfectly linked to both airports.
Batuhan was very responsive to our requests, if something didn't work.
However, some things couldn't be fixed properly, like the shower pressure.
If you come with the idea to eat out or order food, the flat is enough. If you had in mind to prepare your own meals, it is a bit more complicated as the fridge doesn't work and cooking with the electric cooker is hard (to maintain water boiling for enough minutes). You can easily prepare porridge, omelettes, but not pasta tho.
The street is quiet at night. You will never feel cold in the flat. The balcony is nice, would be even better with a small table.
Overall it was a really good experience.