We had an absolutely wonderful three-day stay in Florian's apartment. It's very quiet turning away from the street, yet close to everything. And there is even a yoga studio in the building with classes every day. The apatment itself is as shown in the pictures - great for a group of visitors. The bathrooms are a bit run down, but clean and with enough hot water. We didn't use the washer/dryer or the kitchen for anything, but making coffee, but it seems functional and nice. It looks like a real home, which I like - since some of the airbnb places I've been to, have been a bit soulless and clearly not anyone's home.
The apartment is right by Oeberkampf, a part of Paris that I hadn't explored before, but which is absolutely worth coming back to. Close to Marais centre, but with fewer tourists. I like the local feeling of the area.
Florian is very helpful and easy to get in tuoch with, both before and during our stay, and he was there to meet us when we arrived. So all in all, only good things to say about our stay. We'll be back.