We stayed at Senem's apartment for a little over a week and loved it!
The location is AWESOME because it is literally a few steps away from the Galata Tower. Why is this such an advantage? Well, the tower can be seen from almost all over the city, so if you're ever lost, just follow the tower ;) The location was on the intersection of bustling streets and was pretty touristic, but one street over there is a super quiet street with small cafes and coffee shops. North of the apartment is a pedestrian shopping street and the side streets off of that have allll the best Turkish food! Quick walk to the ferries and to a trendy part of town, and even only 30 minutes walk to the mosques across the river.
The apartment itself was exceptionally clean! It was very spacious which was sooo nice. After traveling for a few weeks, we were very happy to have plenty of room to spread out and even have some privacy within the apartment. I loved the decor and sitting in the little window nook where you can see the Galata tower. While it is bustling during the day, the nights were very quiet and the bedroom is an easy escape from any street noise.
The only downside was not having air conditioning. I don't think this is a huge problem as the temperature is easy to regulate with the windows (the window in the bedroom let in really nice cool air at night), but my partner gets hot easily and would have liked AC. Also, we visited during one of the hottest weeks of the year so I think you wouldn't have a problem literally any other month!
Overall, we loved our stay and loved our little neighborhood. Everybody was so kind and welcoming, including our hosts. 10/10 would stay again!