Very comfortable apartment in the Marais. We enjoyed the luxurious linens and large soft towels so much during our stay. Also you can plan on having plenty of hot water for your showers. We were only given 1 towel person for an 8 night stay but Thomas did provide additional towels when I reached out to him the very next day. (No washcloths we Americans are use too though so I bought my own.)
There is a bus stop right outside the apartment and also a traffic light which could be bothersome to light sleepers with the noise. I wear earplugs when traveling and had no problems sleeping with the windows closed.
We enjoyed the area very much and I'd personally recommend the Caruso Italian restaurant just down the street and the wonderful Popelini for sweets right outside the door. The Saint Antoine metro is a 5 -7 min easy walk and a Monoprix is close by.
The apartment is located just a short walk up stairs that really isn't bad with loaded suitcases.
The only negative experience I had (and no reflection on the apartment itself) was the ability to get an Uber in a timely manner or get anywhere quickly in one from this area. Something I have not experienced in my stays in the 7th.
We would recommend Thomas's apartment easily.