Ergün's flat is one of the best equipped ones I have stayed at in Istanbul. Even hairdryer and iron are there! The bed is very comfortable and all is very tasteful and cozy.
The only thing that could be difficult for some guests is that it is deffinitely not a calm place. Sleeping without earplugs on Friday and Saturday night until 4 a.m. is not possible. after that it is absolutely silent until next evening. So, if you are into clubbing etc until early morning or if you can sleep with earplugs it is perfect because it is absolutely central.
We will definitely come again!