WOW! The flat is simply wonderful.
It's small but you can find anything you need inside and outside it.
You can enjoy a comfortable bed, a fully (really fully!) equipped kitchen with microwave oven too, a functional bathroom with a shower that works great. Everything is freshly renovated with high quality materials in a fine, tasteful way.
Unfortunately we could not meet our host Emmanuel but we were welcomed by a friend of his who was very nice. Anyway Emmanuel surprised us because he left us some food and beverages and a little box of delicious pastry shop-made macarons!!!
The neighborhood is charming, with the Rue Montorgueil's market open 7/7, where you can buy anything you need: you find supermarkets, bread, pastries, chocolates, fish, meat, fruit and vegetables...
The location is superb, even because you are a three minute walk from the Les Halles hub, in the heart of Paris. You can easily walk down to Centre Pompidou, the Louvre, Notre Dame, hotel de ville.
I think it would be very difficult for a couple to find out a better choice at the same price.
Highly recommended!