The apartment is very clean and very peaceful. We spent 5 nights there, with two kids and we did not have any problem.
The neighborhood is a little bit scary with lots of people leaving on the street, but the location is very convinient, with 3 metro stations near by.
My kids also loved the kids public library on the corner, 50m from the apartment. We spend all the afternoon reading there,this is probably what they remember the most.