We stayed at this apartment in early April, and found it very well suited to our needs. The room is clean and warm, with plenty of hot water (just check with Saban how you turn it on), fresh towels, great wifi, comfortable bed, lovely balcony. The kitchen is just sufficient to prepare a basic meal, but some essential items were missing - plugs for the sink and basin, a good sharp knife, a carving board, and a bottle opener/corkscrew (we donated on of these). The location suited us, close to the tourist attractions of Istanbul, but you have a couple of flights of steep stairs from your room to the street, then it's all uphill from there.
We thought that this apartment was good value for money, and a great first experience with air bnb.