Canberk was really helpful and his reply was fast. His room is definitely central and perfect for backpack travelers. I should mention though that reaching his apartment from taksim is easy if you dont mind the steep hill (it is really steep).
His room is exactly as the pictures, yet the house was not as clean especially with a lot of bugs. The bathroom was terrible as well to be honest. At the end of the day this is definitely the perfect room for budget travelers, nothing fancy!