My boyfriend and I stayed one night in Suphi's place at the end of our Turkey trip before returning home.
Pros: Place was exactly how described and pictured, Suphi (host) was very available and easy to contact for questions and recommendations, very central location (close to Taksim square and airport shuttle stop), host provided basics for morning coffee/tea, air conditioning.
Cons: Loud/noisy - especially on a weekend evening with bars and a busy street close by, smelled like cigarette smoke in all the chairs and furniture (as a nonsmoker this was bothersome), water temperature control for the shower was inconsistent.