This place is incredible for some short or middle-term stays in Istanbul. Great location in the heart of the touristic part of Istanbul. Millions of small and authentic shops are on the small streets around the place.
As other commenters have mentioned, the best part of this place is the panoramic view from the patio. It will be a wonderful stay for you if you are into marine or aviation spotting. You can sit on the patio with a cup of coffee/glass of wine and enjoy the approaching planes to both huge air hubs - IST and SAW as well as a lot of ships that are cruising through the Bosphorus.
The host was always lovely and tried to make our stay as positive as possible, always online and helpful.