Our host was wonderful. She was friendly, full of information and accessible, which is important especially when you're in a foreign country. When we had a question or needed things, she was able to deliver right away.
The place is a studio so by definition small but it has everything one might need: fridge, stove, two options for making coffee, kitchen ware, utensils, etc. One studio has the tub with a retractable shower head and the other has the shower. Both have separate toilets.
The studio is centrally located in a safe area. I walked around the neighborhood at 11pm and 5am and I wasn't bothered by anyone. It's a half block away, around the corner from the view of the Eiffel Tower, the bus stop, the metro and taxi waiting area. Within the half block, you can find bars, restaurants, patesseries, pharmacies, grocery stores, markets and boutiques for clothing, shoes and jewelry. And about three blocks away is Rue Cler or what I call restaurant row. Here you can buy cheese, a Brillo pad, seafood, Chinese food and souvenirs.
The only downside I can point out is that the window to one of the rooms faces the coutyard and the other building directly. Meaning that you can't keep the Venetian blinds up or open because people can see in. But that is the way the studio was built and the host has made efforts to keep the area private.
Overall, my experience was good. I would stay here again.