The apartment is really great. It is hard to be more central than this. It is very conveniently furnished and with good taste. I really recommend it for those who want to be centrally located and walk everywhere in Paris.
The two streets downstairs are quite noisy during the day and in the evening. You have to appreciate a very lively neighborhood. It is not so much of a problem as the bedroom is very well isolated but it is quite noisy when you are in the living room.
The apartment is really nice but we had a bad experience with the cleaning of the place. It had been really badly done when we arrived (several long hair in different locations). And the sheets were not washed properly (some stains). We mentioned it to the agency in charge of the place and they provided new bed sheets.
Overall, I recommend this apartment and could stay there again but would really insist on the cleaning aspect.