I stayed in Yasmina's place for a month and the stay went great! The apartment is located within a few minutes walk from Stalingrad metro-station. The area is lively and vibrant, and there are hardly any tourists so you get to experience a different side of Paris. I found the apartment building to be quite quiet too.
The apartment is small as described, but I had two luggages and my things fit well into the apartment - there is a surprising amount of storage space in fact.
Yasmina was very helpful and responsive.