I have rented the house for family reunion in Istanbul for the entire August. The house has been well organized and you basically do not need any other equipments for living and it was spacious enough for my family.
The only problem I found is that as the house is close to highway, you might hear the car noise passing by though with well isolated windows the noise has been negligible.
Regarding the location of the house, you would not have any problem as it is close to a bus station and there are lots of taxis that you can reach to city center. Also, there is a big Carrefour center close to the house(10 minutes by walking) that you can buy your stuff.
Regarding the hospitality of Mr Alper (the owner), I can say he is very nice and helpful guy, he is always available to help you at anytime.
Generally, I like my accommodation and hope you find my feedback helpful.