Helene’s place is very nice and the location is great, just few mins walk from Metro station. There are many restaurants and shops near by. It looks relatively newly renovated, furniture is simple, new and practical. There is a very nice kitchenette with nice appliances (which we didn’t use much, except the fridge). Wi-fi was working great. There is also a decent size TV. There are also very good washer and dryer in the bathroom.
The place (kitchen, bathroom) was clean when we arrived, except for the floors, they were pretty dirty. Also, sheets in the bedroom did not look clean. There are plenty of towels in the bathroom, but they are pretty thin.
Our stay was during an extremely hot and humid weekend in Paris, and there is no air-conditioning in the apartment (and pretty much nowhere in Paris, except the airport :-)). However there is a small de-humidifier in the bedroom, which helped a lot.
In summary, it was a nice place to stay in Paris.