This place is amazing. We just stayed there for a week (my wife and two daughters aged 5 and 7). First off Helene is extremely nice and responds very quickly to any questions. Check in and getting key was very easy. The location is incredible. Neighborhood is really nice, lots of shops and restaurants just a street or two away, quiet neighborhood and street. 25-30 minute walk to Eiffel tower and Metro station a block and a half away.
The apartment itself was clean and had everything you would need. It's really spacious as well. Large bathroom and living room. Nice views as this apartment is on the 6th floor. Big windows that open up to outside with automatic blackout curtains which came in handy.
Helene mentions that there is no elevator and you have to go up 5 flights of stairs, so we were prepared for that. You will definitely get a good leg workout, but didn't bother us.
We also knew there was no V there so we came prepared with a laptop for our kids to watch shows.
Will 100% stay at this place again if we go back to Paris. It was a phenomenal experience and staying here had a big part in that.