I stayed for 5 days in the green room at Can's parents place and it was a really great experience to meet them. Can was very helpful in advance, always getting back to my questions as soon as possible and also giving directions when I was in Istanbul. I didn't meet him but his parents who are the nicest and most interesting people you can imagine. I am really happy that I got to know them. The location is very nice, too - the view to the Bosphorus and the castle and the beautiful village of Bebek nearby.
The journey into town takes between 40 and 60 minutes depending on the traffic so it is maybe best if you stay longer than just 2 or 3 days.