Highly recommend this stay and host!
Check-in went smoothly and friendly, as I arrived late in the evening. The place is comfortable and warm, worth mentioning for a visit mid-winter. The kitchen is well-equipped, bathroom better than the pictures might show.
The apartment is situated in Tarlabaşı, only 200 meters from Beyoğlu and its many bars and restaurants.
It is very central, but one of the quietest places I have stayed in Istanbul. Don't hesitate because of remarks about the neighbourhood - it is safe, just be sensible as anywhere...
And an abundant fruit/veg/market down the road on Sundays!
Istiklal Cd., Asmali Mescit, Cihangir, Arter Museum all on walking distance.
Plenty of buses towards Eminönü/Fatih around the corner, Taksim Metro 10mins away. And public transport these days really takes you anywhere!