Enjoyable stay at Aylin's! We actually stayed in two of her rentals: the studio and the apartment above it. Great if you need space for 4+. Very calm yet close enough to all. Loved the nearby Galata neighborhood and Karakoy.
We took a boat from Karakoy to Kadikoy. Great fun- boats are extremely efficient in Istanbul!
Aylin was a great host! And I recommend her taxi offer