We stayed at this apartment in the beginning of May. I recommend this place to everyone.
Missy was so nice and her responses were always prompt. She helped us with getting taxi, and suggested some places to visit, and one day she surprised us with nice gifts.

The apartment was clean, and it looked exactly as advertised. We used the washing machine, and dried our clothing with the drying rack. So if you think you will need to wash your clothes, plan ahead as it might take a couple of days to dry (depends on humidity).
We also loved the location, the view from balcony was beautiful. Also, it's right next to Istiklal street, which is so lively and fun. In case you are traveling with older people, most alleys (that we saw) in Istanbul have harsh slopes, same is true for this one and it is a bit rough on the knees.
Overall, awesome experience. :)