Isabelle's place is without doubt the nicest airbnb place I have stayed in. Beautifully furnished and laid out with lots of charm. I would say it is much larger than appears in the photos. On top of that you are staying in the heart of a beautiful city, close to everything but still fairly quiet.
Check in was smooth and we were able to leave our bags before the official check in time which was handy.
All in all it would be the first place we would look to if staying in the area and would recommend to anyone unless you had mobility problems because there are some steep stairs that may cause some problems.