Kerem is a great host! He was there when we arrived at the unholy hour of 1:00am! Our room was air conditioned, a welcome treat, because some rooms/apartments that we stayed in in Europe were not!
I didn't see the reviews commenting on the unavailability of an elevator. It was a challenge to go up and down the stairs since I had a knee problem and our room was on the fourth room. Luckily, Kerem is kind and he and his staff were kind enough to help us carry our luggages.
The place was centrally located and restaurants and shops were near. A subway station was walking distance, hence, making our commute very convenient.
I would definitely recommend Kerem's place!