The listing and description are very accurate. Cemre, and her mother Semsa, are great communicators.
The apt is clean, bright and airy; bed is comfortable, the pillows are of different thickness: touch of genius! It's very well located close to major tourist spots and a short walk away from waterfront and Galata bridge. Also, being myself a photographer and book lover I was excited of being two floors up the Fils Bookstore.
Btw, steps are steep, and no elevator, consider it if you carry heavy luggage.
On the other hand: it's in the hearth of Karaköy movida, which means cool bars and restaurants next door but also loud music till late at night. Bring your best earplugs!