My wife and I stayed at Marc's cozy studio apartment for a night. We loved it. Although it's on the street, it's very quiet and safe. There are over 20 restaurants and a small grocery store on the street (Rue de Caumartin). The apartment is very close to many places of interest in Paris. Staying at Marc's place made our first trip to Paris seamless and more enjoyable.
Marc was an incredibly helpful host. He responds promptly. He checks in with us without being overbearing.
We highly recommend this place, and would stay again.
P.S. - Marc gives excellent directions.