Tasteful flat in a great location. You can walk to tons of cafes and boutiques and viewing the Galata Tower from your bedroom is pretty special. The place was very well equipped with extra towels.
The only mild critique is that the 3rd room is not really a room but a tiny hallway with two bunk beds.
Overall, a great place to explore a hip part of a hip city. The tram below takes you to all the key destinations and Serdal has great restaurant recommendations.