the apartment is like in the pictures, small but comfortable. It is the third floor but no lift: it could be a problem for people with physical problems.
You will find everything you need in the apartment. Great bed, heating and hot water working.
The location is strategic: it is in Beyoglu (center of the evening and night life) but equidistant from Taksim Square and to the tram station Tophane (useful to go in the Sultanahmet area, the area of the monuments). However Sultanahmet is a 20 minute walk.
The house is not noisy when you consider that it is in the city of Istanbul (very busy), but at 6.30 am around can be annoying listen the song of the Muezzin from the nearby mosque (but it is a typical feature of Istanbul !!).
The best thing of all is the availability and kindness of the owners, always ready for any request.
Recommended!