The guest house is in an old building very close to National Museum, there is a small mechanical evaluator to bring us to 4th floor (total 5 floors), the experience was quite different from living in modern apartment. It was chill. We were 4 people to share the 3 bedrooms, the space is just fine, the sharing area is the kitchen and crystal table.
We drove to Prague and parked the car on the outside street of the guest house building, there is also a private parking place with charges (see image attached) , hopefully this can be helpful for the other visitors with cars.