I didn't stay in the apartment listed but a different one from the same host. I'm reviewing where I stayed. The apartment was spacious and in an excellent location. It's an easy walk from the train station and there are tons of restaurants and things nearby. There are nearby trams to go to the centre or it's not a bad walk through the big park nearby.
The apartment is older in condition but had everything I needed. There are grocery shops nearby. Communication with the host was easy as was check-in/out.
The neighborhood has a lot of bars and hostels, felt safe and it was quiet inside the apartment so no problems there. There is a lot to see in Zizkov, here are a few very near the apt: TV tower w/ babies, Skoba handmade journal store, big beautiful graveyard, underground bunker tour (you need to book a tour that starts in the city centre but it ends up a few blocks from the apt). I love Prague and had a great stay.