We had a really nice stay at the apartment! It was very clean, cozy and provided all the comfort you could ask for. We stayed there with 3 people, there is one double bed that easily fits two people and another extra bedroom. The hosts are kind and the communication was very uncomplicated. The neighborhood is great for a stay in Istanbul, it is not too crowded or touristic (still you can reach the sightseeing hotspots easily) and it has many nice bars and cafes.
We can recommend this place a 100%!