Mehmet's flat was perfect for our one week stay in Istanbul. The flat is very clean, well equipped and the beds are very comfortable. The neighborhood is very attractive with a lot of very nice restaurants and shops during the day and a lot of animated bars at night (still the flat is still very quiet, no noise at all!).
I would definitively recommend this flat if you want to discover a young and attractive neighborhood of Istanbul while being close to the touristic part of the city (tramway line relatively close by).