Horrible experience.
The flat was in terrible conditions, patches on the walls, no a/c, no screens on windows, very poor furniture that was in really bad condition and full of stains. In order to get to the flat, you need to climb 5 (there is no elevator), need to walk throughout some storage hallways full of boxes, and dirty stairs. At 2 am, the neighborhood below (also a tenant) started playing house music extremely loud, and they stopped playing the music at 6 am. We called the office number left at the flat and no one responded. We had to leave the flat the next day because it was just discussing and the noise level unbearable.
We requested our money back and SmartFlats denied to refund us the money. Horrible place and horrible company to deal with!!!