The apartment is quite spacious for Paris and very clean. having two separate rooms with two showers was a definite plus. We were traveling with small kids so being on the ground floor was a practical. The apartment is equipped with all the essentials for a great stay.
The only downsides are the noise from the street and the location. It sometimes seemed as though there was a window open although they were all closed. We didn't spend too much time at the apartment so it wasn't too bothersome but the noise was excessive at times. Also, it is a little far from major attractions. If you are willing to walk, it is doable. The metro is near but it's not the most stroller friendly experience and it will still take you about half an hour to get to the main sights. It is a proper location if you aren't traveling with kids as small as ours.
Overall we really enjoyed our stay and would recommend this apartment.