Alena's apartment is a fantastic place to stay and would highly recommend the place. It has all the required amenities, is very close to public transport (Tram) and in a safe neighbourhood.
Due to a bad storm in Prague, unfortunately the AC in the apartment was ruined due to which Alena had arranged to setup a portable AC unit which was a bit noisy when turned on in the night. However, I am assuming by now the issue has been rectified and future guests would enjoy there stay just as much.