We stayed at Kerim's house for about a month. Staying in this house helped us experience Istanbul. Communication with the host was smooth. Kerim answered my questions in a timely manner. The pros and cons of this house we experienced are:
Pros - This home is about a 3-minute walk from Osmanbey Metro Station on the Greenline M2. It is just one stop north of Taksim. If you take the Green Line, you can go to Taksim Square, Galata Tower, Eminonu, etc., at once. To get to Hagia Sophia, you need to get off at Vezneciler station and transfer to the T1 tram. We mainly used these two routes during our stay in Istanbul. There are also many grocery stores around this house. There is an exchange store in front of the house, and it is fun checking the exchange rate every day through the window.
Cons - This house is located on the main street, so you will hear traffic noise. There were times when some cars blocked the intersection right in front of the house, and we heard drivers honking almost instantly.