We stayed there for five nights with three persons (two in the bed, one on the couch) and everything was perfect!
Elif is a very nice host and reached out to us very much in advance of our stay to help us organize transport from and to the airport. During our stay, Soner - who also lives in the house - was always there and available via text in case we needed anything.
The apartment is very well situated in a lively area near Taksim square, yet inside the apartment you don’t hear a lot of noise from outside. Perfect to get rest in the night from walking through the city the whole day.
We can really recommend staying here when visiting Istanbul and will hopefully be back some day ☺️