The place is located at the heart of Le Marais. You can walk to all parts of this trendy area from here, and you'll run into art galleries and amazing boutiques. It is well connected by multiple bus and metro lines to the rest of Paris.
The space itself is cosy. By Parisian standards has enough space for two people, a comfortable bed, sofa and a well stocked kitchen. Do listen to the CDs of jazz and classical music that stock the shelves.
Jerôme, the host is extremely helpful. He helped us check in, gave us good guidance on the tourist attractions and restaurants.
The only problem we had was the construction going on in the floor below us, which led to a lot of dust and intermittent noise. But hopefully that won't last long.
Would highly recommend this place for your Parisian stay.