Elena was a great host and answered all our questions very quickly!
The apartment is big and clean. The location is great to reach both the center as well as the restaurants and bars in Vinohrady by foot. Public transport can be reached within a few minutes. Sometimes it was a bit loud though.
The only negative thing I want to mention is that the curtains in the living room don't really darken the room. That might be a problem, if the person sleeping in the living room is sensitive to light. Other than that, we would be more than happy to stay at Elena's apartment again