The central location of the flat is its great attraction, and it is quiet as it gives onto an inner courtyard. The neighbourhood is lively, good restaurants and bars nearby; the newly re-opened Picasso Museum is a short distance away as is the Centre Pompidou, Notre Dame, etc; great shopping nearby at the rue de Rivoli or in many independent shops in Le Marais. Metro connections galore.
The welcome was warm and the handover of keys was efficient.

A couple of criticisms: The carpet needs urgent cleaning or replacing: the orange colour of the carpet shows the dirt easily, and the carpet really was dirty and not inviting to walk on. The kitchen area, bathroom and toilet have wooden floors, which can be cleaned more easily. And the photos need updating too as a couple of things have been changed (sofa for instance).

I would go back as soon as the carpet has been professionally cleaned or replaced as Christine is a lovely hostess and the location of the flat is perfect for a Paris visit.