We were a family visiting Istanbul, and the place had everything we needed for a week. The amenities and kitchen supplies were enough, and the place was clean. The host was very responsive and helpful, which made our stay comfortable.
The location is on one of the main streets of Istanbul with many shops and restaurants, and it is super walkable. The only downside was the traffic on the one-way street and the problem with taxis and public transportation. There is a bus stop right in front of the place, but the traffic makes it hard to commute unless you are an on-feet person. (You can still find a taxi, but it takes a while to get to the center of Kadikoy) Overall I’d recommend the place and the host.