Outstanding location - you can literally just walk anywhere you need, and if it a little bit too far - there is a bus stop just near the house.
The neighborhood is really authentic and interesting by itself, worth some time to explore, and inspite of the shabby (in a good way) look of the street, the house is very modern and big enough for a family.
So, nice location, comfortable place to spend some time between trips to the city and extremely helpful and friendly host (he even tought us how to make proper turkish tea)) - it's everything you need, really, to have a lovely vacation in Istanbul.