The apartment is outstanding, you can tell it was not done on a budget just for rent. It is well furnished, equipped with everything you may need and very clean. Although it is not very spacious on paper it did not feel too small for a family of four. The sofa-bed extends into a double bed, with fresh bedding ready underneath it, effectively transforming the living room into another bedroom at night. We had a overnight stay on a lengthy trip and the location of the apartment let us cover the center of Olsztyn with ease, it is within walking distance (with two kids and a stroller) of the castle and everything surrounding it.