We really enjoyed our stay at Ozkan's place. His apartment is great for long stays - it is well equipped and cosy. The location in Balat is fantastic, really near to all the cafes, shops and restaurants in the area. It is also well connected to the rest of the city - there are a lot of buses that you can take from Balat to get to anywhere in the city.
The flat has a fully equipped kitchen including an oven which you don't often find in Istabul. As we were staying for a long time in Istanbul we found is useful as we had everything we needed to make meals at home.
Ozkan responded to us quickly whenever we had a problem and also gave us helpful advice. We would definitely stay at this apartment again!