Magical. If you have a large group of people and want to capture what it might be like to stay in an artist's loft/family appartment in Paris, this place is for you. We had two families with 9 people and we fit comfortably. The main floor has a unique glass roof- like a greenhouse -that lets light flood in. The below ground floors all have ingenious "skylights" that accesses natural light which allows you to forget you are in a basement.
Bastille is a very good neighborhood with fresh bread (or a full supermarket) just steps from your door. A five minute walk takes you to an area of Bastille with a bustling nightlife. Metro to Eiffel is a 2 minute walk at best.
Veronique allowed us to check in early since she didn't have anyone booked the day before. Lifesaver after a red-eye flight from USA. Her place isn't a staged Air BnB (with no one living there except tourist.) It seems from cute art around the flat that a young family actully uses this most of the time. We liked this. It allowed us to image how it would be for us to raise our young family in Paris. We did a mix of eating out and cooking in and her table fit all 9 of us at the same time.
Finally not everyone in our group loved this place as much as I did. We were travelling during a July heat wave and some felt that it was too hot at night. We assumed that, like much of Paris, there was no air conditioning so warm nights is part of the experience. Also make note there is a courtyard right outside the front door but since it is shared it is important to be quiet while outside.