I have mixed feeling about this place. Firstly, let me start by saying owners were really nice and cool people. Location was nice, as it was really close to Kadıköy but not in the heart of it. I also really liked the artsy feeling of the flat. There were a lot of paintings and a lot of nice plants all around the flat.
But I also had couple of problems with the place, which made my stay subpar. I did booked the place in sort of a hurry, so I did not fully check all the facilities, but from the price point and this being listed under 'Entire place' when filtering, I assumed this would be an isolated, fully equipped house. This was not the case. There was no kitchen. There was only a really small fridge and a coffee machine. Not that they have misleading house posting or anything, as they don't claim they have a kitchen, But with the price tag, It should have.
Another major problem was that, this house was not really isolated. It was the second floor of a single flat and on the first floor, owners are staying. I could hear them / smell the food they are cooking etc. Again this is not to say they were disrespectful or loud, because they were not, but when I list a place under 'Entire place' I expect it to be a fully isolated house. This was more like I rented 2 private rooms and a bathroom in their house. But I should add it had a separate entrance so It might not be that bad for you.
Third problem was, well, there was literally an ant invasion. I was beaten by a lot by small ants that were popping up from everywhere. So if you are really sensitive about bugs/ants in the flat, avoid here.
So overall, I stayed here for a week and it was not like 1 star or anything. But you can have better options with almost the same price in around Kadıköy.