Guner and Berry are so welcoming and helpful. They tried all their best to give all info I needed during my stay.
The accommodation is so clean and has basic requirements. It is located in a residential area, surrounded by some small local shops, cafes, and etc. a few mins walk to Istiklal.
I should also mention that the flat a tiny studio but good for the price being.
Advice, be aware of taxis in Taksim. Ask for the British embassy and you can walk from there to the flat about 5 min.
Bottom line, I would recommend the host first and then the place.