I can certainly recommend this place. The apartment itself is absolutely gorgeous! The room is so beautiful, it could've been a pretty hotel(: And it's in the middle of the city centre, where everything's within reach. The only downsides, I guess, are that it can get a little clammy in mid-summer (we were there in June, and it was a little sticky already), and that Zehra is also staying in the apartment (on the couch) and the place is rather old, so you hear everything in the other rooms. Similarly, the streets outside are really noisy, so if you're a light sleeper, take really good earplugs. But otherwise, the place is really lovely and will definitely make your stay in Istanbul feel like coming home!