Basak did her best to provide a satisfactory service. On my arrival date, Taksim/Istiklal was closed due to Labor day in Turkey and that delayed my check-in. She stayed for a couple of hours to check me in. During my stay there were some minor maintenance issues that she tried to fix as soon as possible. Overall I am very happy with her support and assistance during my stay.
This apartment is conveniently located right by Istiklal Caddesi and everything (metro/tram, shops, restaurants, cafés, Turkish delights, pharmacies, pretty much everything you might need) is in walking distance. Istiklal street is very safe as well with police/security staff present day and night.
The only downside to this apartment is the street noise (mainly the music from surrounding bars and night clubs). So have this mind before booking this place if you are sensitive to the noise. Other than that, I think everything else was really good. There's also a good and stable wifi service at home, as well as a washer, fridge, space heater and air-conditioner, all in good working conditions.
Overall I am satisfied with this place and very satisfied with the service that Basak provided.