We enjoyed our stay in Chemin Vert 4. The closest Metro station St Ambroise on Line 9. There is no parking on the street so if you come by car, you'll need to find parking before bringing your luggage into the apt. Check-in was extremely easy. Instructions were perfect. Best part - no stairs to reach the apartment! There are one flight of stairs to reach the main bedrooms and another flight of stairs to reach the loft.
While we were there the other units were also occupied by other Airbnb visitors. When you're on the main level, the sound proofing is superb. Even though we had 11 people in there, you could not be heard from the outside. However, in the upstairs levels, the sound travels too well. We could hear the neighbor's kids outside in the common area at 7am. Given that we needed to have early starts during our stay, it wasn't a big deal.
There are many good options for food within a 5-10 walk from the apartment. We did take away from a couple places during our stay.
Checkout was also an extremely easy task. Checkout is at 11am, but we were granted permission to leave our bags there until we left for the airport after lunch. This was really convenient for us since we didn't leave for the airport until 1:30pm.
Overall, we enjoyed our stay at Chemin Vert. The location is great. Short walk to the Metro. Many patisserie and dining options nearby. Would definitely consider staying here again during our next trip to Paris.