If you want an apartment in the best part of Paris, Le Marais, this one is for you. I stay in Paris about a month each year and do recommend this part of town.
The highlights include a dark bedroom, great WiFi, very friendly hosts, and a large bathtub! You also have a view over a typical Parisian courtyard filled with restaurants. Very easy access to the metro. The hosts left me a bottle of wine and a bottle of juice plus Paris guidebooks. Very thoughtful! And lots of coffees in the kitchen! Also, the apartment was very, very secure.
Just to note: you have to climb 66 winding stairs up to the apartment. And there’s not much room to unpack since the hosts actually live in the apartment when they are not renting it out. Finally, if you are a light sleeper, bring earplugs—the courtyard restaurants stay open late, and the double-glazed windows don’t do quite enough to keep it quiet.
Thanks to Guillaume and Delphine for their hospitality.