This is a really great, well-considered place that is as represented. Great neighborhood with a Sunday market and right next to Les Halles. The housekeeper is excellent and the place is very clean.
Wifi is great, Constance is a thoughtful host who is a good communicator. The bed in the loft is comfortable. You need to be young and/or fit to make sure you can climb the latter to get there, but it's not a big deal.
I would highly recommend this place to anybody in Paris!