The apartment is in a great location, about a 10min walk from the main station and about 10min walk from old town square. It's also very close to pubic transport and some pretty great breakfast places. There is also a cool little cocktail bar on the street so we always finished up our night there which was nice. We felt very safe walking around the area and in particular the street the apartment was on at night.
As for the apartment itself its much bigger than the photos which was great. It's also super clean and has a tonne of amenities including a washing machine which was great.
Julie was a great host very responsive and kind. We didn't get the pleasure of meeting her but we had an amazing time at her apartment and I can't recommend it highly enough. This place is an excellent choice for your stay in Prague.