As a solo female traveler it is extremely important to feel safe and welcome in such huge city as Istambul. Sapphire and his partner Arif were super welcoming, making sure I have everything and even fed me after late flight. :)
Location is very central. Metro only 5 min walk away, train station close by and everything is in walking distance if you enjoy active holiday.
Room was very comfortable, clean and had everything you could need. If you are missing something important I'm sure Sapphire will arrange it for you. Overall super friendly and welcoming experience. If I ever go back then only to this apartment!