(+) The place is really nice. Its beautiful and very comfortable. Very quiet so you can expect a peaceful sleep at night which I love. The shower is really good, the pressure and the balance between hot and cold water is nice. The sofa bed is comfy and wifi is quite fast. Kitchen and aminities is great. Engin has a lot of books that is very helpful if you want to get more info on Istanbul and Turkey. It is close to minimart, +/- 10 meters.
(-) Location is close to tram, but since Istanbul is a hilly city, you need to walk all the way up to reach the apt from tram (PS. Be careful with google map cause he will take you to shortcut that requires a lot of stairs, use the main road instead it’s more convenient). For me its not that bad. For family with seniors or baby or toddler you need to consider this, but if you take taxi its ok its pretty near to everywhere (although beware of taxi in Istanbul, pls search in google for more info, I use Uber for taxi cause I don’t have to explain where I’m going, the driver got the location already - Uber in Istanbul use yellow taxi and its metered). Other info, the washing machine is not equipped with dryer so you have to hang your clothes afterwards.