The apartment is comfortable and pleasant. It's also clean and tidy. The couch is generously-sized and a great place to sprawl and relax after a busy day. The apartment is bright as well. The upholsteries’ warm color is welcoming and bright and even glows a bit when the light comes in the window at the right angle. The yellow works. The pictures don't do it justice.

The location is good. Paris is a walkable city but if you don't want to walk there a metro station half a block from the apartment and another metro station on a different line two-and-a-half blocks away. This district, Le Marais, has a number of good restaurants (we liked the bistro Les Philosophes and also the falafel joints on Rue des Rosiers), but if you want to cook for yourself you can go to a market (Rue Montorgueil is a fun Parisian market street--thanks to Michel for the tip; also, the Richard Lenoir outdoor market is worth a visit and not too far away). Alternatively, if you want to cook but are too lazy to go to a market, there's a grocery store (G20) two doors down.

Michel is a friendly host when speaking in English, and became even more friendly and lively when my girlfriend broke out her French. :)