first things first: Barbora and Radek are great hosts, everything went smooth although they weren't there when we arrived. But they took good care of us.
The apartment is huge and fits the description. It is located quite perfect near the river and the old town. Unfortunately it comes with a price. It is really noise almost 24/7. And the hostel and the bar next door doesn't make it better. But we enjoyed staying there anyway and can recommend this place.