We had an amazing stay! The flat is really comfortable and surprisingly spacious, way more than we could tell by the pictures. We were three, but it could easily fit five people. The location is an absolute best, couldn't imagine anywhere nicer in Istanbul. The garden is the cherry on top! The hosts were very kind and responsive to us.
On the downside, we did struggle with the keys, as the side door we were instructed to enter from takes quite some effort to open and close. We needed to call the host for help and even then we spent some time to manage to get in, which made check in a bit stressful, especially since we were arriving quite late in the city. It would be best to have this fixed or to be able to entry the flat from the front door too. Our only other issue was with the shower, that is not constantly hot (the temperature kept varying between hot and cold). These are definitely smaller issues which can be easily fixed. We would strongly recommend the place!