We (2+3 daughters ages 7-16) stayed at Aria & Herman's place 2 weeks ago. Starting from the bottom line - We had great time and everything was as mentioned in other guests reviews: Very centrally located, convenient for family of 5, bit noisy from the nightlife at rue de la huchette, etc. and above all communication with Aria was easy and she was very responsive!
One thing to note - the street downstairs is indeed a bustling street (as mentioned in other guests reviews) starting from early afternoon through the night and our kids didn't feel comfortable to go down by themselves (nor did we to let them...).