Demet's place is sparkling clean, brand new, and well situated. It has an amazing view and the balcony is lovely. It's close to major public transportation and a great mall. It has a great kitchen and everything you need to cook. I've stayed in Istanbul many times and this place was absolutely the best. I would definitely rent it again.
Demet herself is an amazing host. Immediately responsive, kind, thoughtful, helpful with everything I could need, and she came to my rescue in an emergency.
Can't recommend this place highly enough!