We've stayed in a lot of Airbnb's and Ayda's is probably our favourite ever! We had to change around our dates a bit and Ayda was super flexible and understanding.
The apartment is nice and cozy in the winter (and I imagine it's cool in the summer, with the great patio area). It's small, but laid out in a way that doesn't feel like it. I had a cracked rib from earlier in our trip so ended up sleeping by myself on the fold-out sofa and it was super comfortable.
The location is awesome. There are supermarkets and great little restaurants less than a 5 minute walk away, and you can easily walk to Besiktas or Barbaros Blvd (which has bus connections to nearly anywhere you'd want to go).
Would definitely recommend, and we will be back for sure!