Perfect location: minute away from the famous Istiklal street; 3 minutes away from Sishane M2 station and a funikuler to Kabatas where you can connect to the T1 tram line. Lots of restaurants and shops around.
Can be a bit noisy at night but that's normal for this area.
Apartment is very spacious, feels like a house because of the 2 storey layout.
There was everything I needed for my stay; everything was clean.
Internet is high-speed and stable.
The host was very responsive and helpful, easily the best host I encountered in Istanbul so far!
Overall I'm very happy about staying here and would definitely stay again :)