This was the first time I used Airbnb so I was nervous especially because this apartment had no reviews and we were the first guests but I trusted my gut feeling and Gamze (the host) didn't disappoint. She is a lovely girl and did her best to help us with everything even booking taxi for us to go to the airport. Her communication was great and she usually responded quick.
It is a small one bedroom aparment on the first floor. It is good for 3 people if the third person is not very tall and can sleep on the sofa. The bathroom was very clean which was important for us.
You need to consider that it is in a hilly area if you have difficulty walking but it wasn't too bad as it is not very far from the main road which is flat. Also a bit far from Taksim and historical places but the bus stop is close.
There are a few shops and supermarkets closeby on the main road for food shopping and some restaurants. The best thing was the bakery near the house that makes the most delicious fresh breads, baklava and things that you can have for breakfast. We really enjoyed their bread.
You can buy an Istanbul card at BIM supermarket near the house and you can use it for all the transportations in Istanbul including bus metro etc. They also recharge it for you when your credit finish.
Overall we had a pleasant stay in Gamze's apartment and I recommend her place.