Its as beautiful and tastefully furnished as on the pictures and located even better than expected: most of the attractions are in walking distance and on the ground level there is a mini market (if you forgot some basic stuff and dont want to walk to the nearby supermarket). The layout of the apartment allows you to 'split it up' (two bed- and bathrooms), which proved to be useful for us. There is no lift – might be a problem for people who can't walk properly. And it can be a littlebit noisy in the nighttime – a small price to pay for the perfect location, though.
Although we unfortunately didn't meet him personally, Josef was the perfect host: Answering questions via whatsapp almost instantly, preparing guides and recommendations and organizing early check-in and -out. Thank you!
For us this was by far the best choice in prague (including hotels). This is a definitve recommendation!