This room is in the perfect location for exploring Istanbul. You can start you journey from wondering around Beyoglu & Besiktas areas. Taksim Square is very crouded and live all the time and is only 2 minutes away from the hotel. I enjoyed my stay at Mustafa's little hotel. The room was very clean and the room service was great, performed on daily basis. The only downside of this place was the smoking policy - it's not forbidden, therefore some of the guests take it straight forward and smoke right in the room. The first few days I had to endure a strong smell left by the previous smoking visitor, which became more bearable by the end of my stay.
I would still recommend it, thanks to the very friendly hosts and other benefits.