Spent a three-day weekend at Petraki III, in Istanbul. The hosts were very well organized emailing us all the information we needed for our stay and all the resources we had to choose from.
The apartment has just been renovated and was beautifully furnished and even had its own hamam.
The most important feature though was also, that it was located in a perfect location on a side street next to Galata Tower.
The area is full of cafes and nightlife within walking distance of all worthy sightseeing spots but not in a very touristy area. The view from the building roof is to die for!
I will definitely be going back and staying there.
Highly recommended