Nice place in the cool Karmeliter neighbourhood. The place is actually basically a hotel (Vox hotel), and the apartment is a room on the second floor. It is nearby excellent cafes and restaurants (highly recommend turkish breakfast at Zeytin!) and located in a very quiet alley.
While the room was nice, communication was not great because the reception was open only ~9.00-17.00 during weekdays and we had issues contacting them on our arrival (on a Saturday), so just make sure you have all clear beforehand if arriving outside office hours.