Communication with Ertan was amazing, he was always super fast answering all the questions. He let us check-in some hours before the check-in time.
The location of the place is perfect if you wish to stay around Taksim and in the middle of Istiklal street, just few meters away from the main busy shopping street and the lively bars. If you are going to stay there, you need to expect it is a very busy neighborhood, full of coffee shops, bars, restaurants...etc so it might not be the most quite place on earth but it's fine as long as you don't want to be far from lively Istanbul.
I would definitely choose this place again to stay.