I've stayed in Imge's apartment for two weeks and can say that this was one of the best airbnb experiences ever. Imge is a very hospitable host. That was very easy to reach and contact her if I had any questions.
The apartment looks exactly like in the photos. It is very light and well equipped. Also it is very clean. Neighbours are good too, didn't see and didn't hear any during my staying, no loud music or noise.
There are, actually, two metro stations nearby. One is about 10 minutes walk and another one is about 15 minutes walk. A bus stop is even closer. So you can easily reach any district of Istanbul. Havaist (airport shuttle) stop is about 15-20 minutes walk but you can catch a bus or a taxi. And the apartment is close to the new Istanbul airport (around 40min by shuttle).
Also you can find all possible cafes nearby the apartment, as well as numerous stores and supermarkets. There are also 3 malls 10-15 min walk.
I think this apartment is suitable for both long-term and short-term staying.