This was my second stay at Altug's place, stayed for almost three weeks. What I said in my previous review is still valid - The location is perfect if you want to stay in the Taksim/Istiklal area, it's on flat ground so not much climbing, and the building has an elevator. There are several bars/clubs nearby, so it can be a bit noisy at night. The flat is exactly like the pictures, and the a/c was keeping the room temperature right even on a hot day.
Got to say Altug is a perfect host in my opinion, great hospitality from him. Would definitely be back.