We spent 3 nights in Apartments Du Louvre and really loved it! It's rather a small hotel, not an Airbnb and that being said provides some nice features, like reception desk, luggage storage, etc.
Everything was great, apartment was spotless, beds were comfortable. But the most important thing, the location is simply unbeatable. Very central (5 min. to Louvre) yet on a quiet street.
Definitely recommended.