Excellent position, you can really enjoy the most famous attractions of Prague by walk, or when you are tired take advantage of the close-by bus/tram/metro stops. Even if I didn't meet Zsofi personally, she was very precise, responsive and fast in communication. Her assistant Ioana, who welcomed me, was very nice and provided really useful tips about how to enjoy the city as a local. It's an apartment that can fit up to 8 people, but since I travelled alone it was super comfortable. And very clean. All in all, I really enjoyed the stay. Beware it's an old building, so there's no elevator, but it's only 3 floors.