Stephane is a wonderful host and I would stay again at his apartment in a heartbeat. He is really responsive and helpful.
The apartment is very clean and bright. The sofa bed is really plush and comfy. Plus, the location is great. You can get to anywhere touristy in Paris within 20 to 30 minutes door to door. You are about a block or two away to 2 metro stations.
The neighborhood is good, safe, and lively with great food choices. In short, you will not regret staying at his place.