Chrystelle was very communicative and helpful. She texted us ahead of our visit, waited for us when we arrived, showed us around. There was a small welcome basket of fruits and beverages (Thank you!) She even helped us find open grocery stores after 9:00 on a Sunday (the day of our arrival).
Her flat is very nice. Located very close to the Arc D'Triomphe and the Champs Ellysees. It is spacious and lives up to its pictures. It is in a somewhat private building. Sharing space with some office buildings. It has somewhat of a courtyard, though nothing fancy, but it does filter out any street noise.
You enter on the first (French, second American) floor, and there is no elevator. Lots of light. We would definitely stay there again and recommend it highly.