To go up to the observation deck, you need to take a not very tasty coffee on the top floor) but it's very beautiful, the balcony itself is atmospheric, if you go there, count on about 40 minutes.
A very unusual and extraordinary design that somehow manages to fit into the overall architecture of the city. It is located in a wonderful location from which you can go to other sights of Prague.
I definitely advise you to visit.
But I definitely wouldn't live in such a house)))