We just loved this place. How clean it was, well equipped, well located and warm (it was a little cold outside, but the apartment was always just right).
Most reviews mentioned it can be noisy in the mornings, thanks to the school nearby. It was not that bad. Plus, can be an incentive to wake up early and get around (Louvre is a 30 minutes walk. The river, just 10).
As I said, we just loved the place and will stay there whenever we go back to Paris.