Uygar is the best host you can dream of. Very caring, nice, interesting, fun, 100 % available and determined for you to have to best stay ever. He recommended very nice places to have breakfast and lunch in. He also shared lots of tips about Istanbul.
His Turkish coffee is perfect as well!
As for the flat and room, you will feel home within seconds and Uygar made sure I didn't miss anything.
My first contact with Turkey and Istanbul was at Uygar's and I couldn't have dreamt of a better one. Thanks ;-)