This is a great place and Mehmet is a good host.
He arranged the airport transfer for us which was quite convenient.
The apartment is situated close to many restaurants with great food, you don’t need to walk more than 5 minutes to have some of the best Turkish kebabs! Or just to buy some groceries.
Location is a bit of a double edged sword, it’s great since it’s quite close to grand bazaar and Hagia Sophia but getting to Taksim square area and back could be quite challenging, mainly due to crazy traffic situation and bad taxi/Uber system.
Apartment has air conditioner, is very tidy with daily cleaning.
A few things to keep in mind, depending on the floor, going up the stairs could be quiet a workout and may not be suitable for elderly people and also Wi-Fi could be spotty at time.
All in all, highly recommended!