Five stars all round for this property. Great location and a walking distance to most places. Surrounded by lots of cafes, shops, restaurants, it's an ideal place to stay if you want to be slightly distant from the madness of Taksim and Şişli, but not too far to not be able to go there by a few minutes walk.
The neighbourhood is safe, nice and friendly. And unlike most stays in Istanbul, you shouldn't be able to hear the call to prayer too loudly at early times in he morning.
Aycan and Mert were very knowledgeable hosts with very very fast communication and of course friendliness.
I definitely recommend and would like to return again soon!