It's a wonderful, bright and comfortable apparment located in a nice and peaceful neighborhood. It's very easy to get to the center from there both by public transport (3 min. walk) and walking (30 min. to Notre Dame). If you want to have a place to rest comfortably after a long day, this is your place!
Apart from that, a thing to have into consideration is that they live there so must be a bit careful and respectful towards all their belongings.