Bahattin and co-host Beste's 4th floor apartment is very good and comfortable. We stayed there for 15 nights. It is well appointed and very clean with full facilities. It is in an apartment block with helpful 24/7 security staff at the ground floor entrance and has two elevators. The apartment is spacious and is good to relax in, with Netflix, YouTube etc available on the TV. Located at the rear of the building facing the adjacent block it is quiet, peaceful and secure. Communication with co-host Beste is very good. She answers messages promptly and is always willing to assist and deal with any queries. Actually we had no problems with the apartment! The location in Sisli district is fine off the main street with a full range of shops, post office etc. It is not directly in a tourist area, which we liked, but close to the Cevahir shopping mall and Sisli/Mecidiyekoy Metro station. It takes a little over 10 minutes to walk to the Metro from where it's possible to get around Istanbul easily using also the trams and ferries. There is a short walk up a hill to get to the main street for the Metro - not unusual for a city built on seven hills, very easy coming back though of course! So I can happily recommend the apartment to anyone looking for a short or long stay in a comfortable and clean apartment in Istanbul and not wanting especially to be in a noisy busy tourist area or to have Bosphorus views.