After a week in Paris, we were very happy with the apartment... the location is fantastic. It is centrally located and an easy walk to most of the major sites in the city; close to the river; and close access to the metro. There are lots of fantastic restaurants and cafes around each corner. We could have spent more time in the neighbourhood.
Of course, being right in the centre of the action means the apartment can be noisy some nights... the apartment cools down with a nice breeze through the open windows, but the night life can be a little loud sometimes... we felt it was a fair trade-off for the location and would return again.