We stayed in a one bedroom apartment in September 2019.
There was plenty of room for the two of us. The layout of the apartment included a small foyer area with a shoe cabinet/shelf/coat hooks, bathroom with a stand up shower and washing machine (we didn't use the washer), kitchen area with a small couch and table with four chairs, and bedroom with a full bed, desk, TV, and closet. There was ample storage space for a week's worth of clothes. The doecor was simple but it was tidy and suited our needs.
The apartment did not have AC, but that was not an issue the week we stayed (temperatures were about 70°F during the day and 55° at night). There were two fans available for use in the apartment.
The apartment faced into the courtyard so the view was just of the apartments across the way, but it was quiet and sleeping with our windows open for ventilation was not a problem.
The staff was very pleasant and helpful (though the hours of staffing at the property is limited, but 24 hour staffing is available at the sister hotel a few minutes walk away). The location is great - an easy walk to the Old Town and Charles Bridge area, tram stop pretty much in front of the building and metro line a couple blocks away. There are grocery and other shops in the vicinity for anything you may need.
Overall, we had a good stay and recommend this property.