Mehmet's place will provide a comfortable accommodation for your vacation in Istanbul. The room is very big and during the daylight it is full of light. Both the kitchen and the bathroom have all needed utensils. The stay itself is kinda cute also as the building is pretty old so the vibes are fantastic.
It is located in the very center of the city - both Taksim and Shish-hane metro stations are very close as well as Istiklal street. It is so simple to find nice places to eat around. There are several 24/7 grocery stores, a mosque and a church in less than 5 min walk. Despite being in the heart of Istanbul, the quarter didn't seem particularly dangerous.
One may find uncomfortable that the building is old as wooden doors and floor can cause a lot of noise though.
The host is very kind and friendly and always happy to help his visitors.
Anyway, I definitely recommend this room to any casual traveler.