My family spent a great week in Istanbul at Boris apartments.
The apartment fully corresponds to the description, it was easy for us to find accommodation and check in, given that we arrived at night, and there was everything necessary for life - a refrigerator, a freezer, a microwave oven, a stove, dishes, a hairdryer, a first aid kit, a shower, a vacuum cleaner, a TV, a good wi-fi, etc. The price-quality ratio is superb. Also the apartment has a great location, everything is within walking distance.
And it is important to note that the host Boris was always very responsive, quickly answered, helped when needed, and gave advice on staying in Istanbul. 5/5