My husband and I stayed here for 5 days and it perfect size for the two of us. The location was very central for or plans. The metro is close. 15 minutes walking to the Louvre and Eiffel tower in either direction. The place itself was super cute and cozy. You can hear and feel the metro under you at times but it didn't bother us one bit. The bed was comfortable and the place was clean. Couldn't have asked for a better stay.
Our only issue- not related to the place but worth mentioning to be prepared- It was impossible to get an Uber or taxi in the area, even when we tried to schedule them ahead of time.