We enjoyed a great 3 night stay, Marie and Louis were very accommodating with a request for champagne glasses in the apt. The place is newly refurbished and very tastefully done.
They really like the copper furnishing style, but beware the copper mugs. They are for cocktails, you're G&T is wonderfully chilled, but don't use them for hot drinks you will scald yourself.
We asked for some extra towels which arrived that day.
The area is very close to Chatalet Les Halles which is one stop from the Gare du Nord (Eurostar) on the RER B and the same train continues to Orly and CDG taking 30 mins and runs regularly.
The area has a few exotic neighbours including the "Love Hotel." Don't let this put you off, we were not bothered at all and saw no one hanging around that would make us uncomfortable. This is a bustling area with lots of restaurants and shops.
We would definitely stay here again, just 5 mins walk to the Seine, there are beautiful walks along the embankment both ways. You can see the top 1/3 of the Eiffel Tower when you reach the Seine (remember to visit on the hour after dark to see it sparkle.)