I did a month long stay at Ersin's place and this was the best equipped Airbnb I think I have ever stayed in. The flat is very spacious including the bedroom. The bedroom is a lot bigger than it looks in the pictures. The location is great! Literally a 2 minute walk to the bus stop; it's about 20 minutes to Osmanbey metro station (if you want to walk on flat ground).
Ersin's assistant Serkan is very helpful, resourceful and responds in a timely manner.
As a heads up: the walls and floors are quite thin. You can hear EVERYTHING outside (from the bedroom) and EVERY footstep and voice upstairs.
Other than that I had a nice stay.