Daniela's apartment was just fine! It's a really special feeling to live behind the castle and also in such an old building. The room has everything you need and you can have there a wonderful stay in Praha. Just one thing: we do not really understand the heating, that was a little struggle for the first night. But I wrote Daniela about it and she answered really quickly.
Even if you live there in an old part from Praha in the castle area, you have a nice connection to the other parts from the city: you can get the tram from the station Phořelec (22) or Hládkov (25) in about 5 minutes. Or you walk through the old streets to the Malostranské náměstí.