Burcak is very kind and very very responsive. She answered my questions before I made the booking, during the check-in process and after my stay.
The location of the apartment is very convenient. It's right by Istiklal Caddesi, where you have access to everything you need. Restaurants, coffee shops, Turkish delights, shops, Metro/Tram, anything you might need is just in walking distance. The only downside is the street noise (mainly the music from surrounding bars/night clubs at nights). So this is something you need to have in mind before booking this place. Other than that everything else was exactly based on what I expected.
There were some minor maintenance issues during my stay that Burcak assisted me as soon as she could.
Overall I highly recommend this place.