The appartment itself was as described!
Location was great, walking distance to all attractions.
The negative: this is the agency that rent quite a few appartments in Prague. They have no personal touch. The fact that you have to go to their office to pick up the keys, not very welcoming. It is about 10 min drive from the actual appartment, and you have all that suitcases.
We had a problem with access to the building at around 10pm. The chip that was given to open entry door stopped working. The host gave 0 solution, made fools out of us that we can not open the door, and this is our fault. In the end the neighbor came downstairs and opened the door from inside with the key which we were not given, and what was more disappointed the host knew nothing about that. apparently they lock the door after 10:00pm, and if you have no key, you can not access the building.