Lovely apartment on the top floor of a picturesque street in Fatih/balat. This had two balconies with views of the streets which are pretty. Although it was compact it felt surprisingly spacious. Everything was very clean and tidy. The only negative is that sound did come through the windows quite a bit- it is very close to a mosque and the call to prayer came through to the apartment quite clearly in the night, so might not be ideal if you are a light sleeper. The host has another property down the street where we also stayed later in our trip which was quieter.
Overall it was great and would recommend the apartment and neighbourhood as a place to stay in Istanbul.