Christelle’s place on Rue du Colisée is a cozy little studio with great location! The Champs Elysee is steps away. It felt very safe, too, since the building is locked at the street and at the main door. I never felt unsafe at all!
She has coffee and tea stocked for you, as well as a small, but adequate space to cook meals for one or two. The bathroom is very nice, with great water pressure and water that gets both HOT and COLD (which has not been my experience at other places).
I was in Paris during a particularly hot few days, but with the fan Christelle provides, I was able to open the windows and keep very cool. Even with the windows open, you don’t hear much street noise, which is so nice!