I would absolutely recommend booking a stay in Bérénice’s air bnb! The location is in the heart of Paris therefore all te “must sees” are easy to reach.
Bérénice is a lovely woman who can help you with getting around the city, giving advice on what you can see, chatting (to upgrade your French) and is a lovely conversationalist.
The place isn’t really big but you have everything you need. Bérénice respects your privacy, so this won’t be a problem during your stay!