The place looks better than the pictures, It was spotless, very well equipped with all new appliances, good wifi, really everything you might need. A 5 min. walk uphill to Istaklal st.- awesome, 3 min. to buses\taxi, 10 min. bus to the closest ferry and a supermarket 1 min. away.
The guys are very nice and helpful, the breakfast is a great way to start your day (makes the kitchen almost redundant), and did I say it's a great value? Oh and there's an awesome farmers market on Sunday just across the cafe (breakfast).
Now the downsides- The view from the balcony is not the best, so unless you really need to smoke or some fresh air, just get the lower apartments because the climb is steep. And the street looks a bit dark at night but you'll get use to that.
We had a great stay! Highly recommended for couples!
And a tip - get the ferry to Adalar ("princes islands") and get off at Heybalde, a really tranquil and sweet place.