I really like staying at Rana & Cem's place. Very comfortable, mostly because of the little design touches everywhere (i love the bedroom curtains), but also a great little space. Everything you need was there - i suppose you could arrive with only the shirt on your back and a toothbrush and you would be fine. Location: down a pretty street from Taksim, and very quiet by Istanbul standards. A bit of a walk if you have too much luggage, otherwise very convenient. Rana super nice communicating for check-in and other stuff. Great place!