Amazing location. Walking distance to all major sites. Great cafes and restaurants nearby. Petra was a great host too. Very attentive and prompt responding when we had a question. In fact, even a few days before we arrived, she sent us recommendations of restaurants and useful resources and websites.
Perfect studio for three people. Cozy and warmly decorated. Beautiful high ceilings make the small studio feel spacious, never cramped. Beds are really, really comfortable. We slept so well that it was hard to get up in the morning.
Note that the shower is in the same area as the kitchen with no privacy. I was traveling with my two teenage kids and this was not ideal. But we managed. Also note that the stall is outside the studio. You don't share it with anyone else, but still, you have to go out of the studio.
The apartment is in a building that is less than impressive. But the apartment is perfectly kept and it is the prefect place for a stay in Prague. I highly recommend it and Petra as a great host.