The location of the house was great. It was clean and as it is advertised. Be careful though, if you have a very sensitive sleeping ear, the great location may adversely affect you. This applies all the houses with great locations in Kadıköy.
Kazım was responding quickly to our questions. We had to check in a bit late due to flight arrivals, and he was very collaborative about it.
One thing I would love him to consider improving is that he should make sure if there are shampoo / shower gel etc at the house. We came and wanted to shower and realized that the bottles were empty. On a similar note, there was only one TP - we had to buy all this stuff that we can't really carry later on. It wasn't a big deal, but it would have been a nicer experience if we don't have to deal with these things that are the host's responsibility.
That being said, I would definitely recommend the place.
thanks for everything, Kazım!