Okay. My teen daughter and I spent a week in this space. It's small, it's cozy, and it's well-appointed. We had everything we needed! The place was clean and thoughtful. There was, for example, an American power strip ready for us to use, so I didn't even need my adapter.
The Metro is literally about 35 steps from the front door of the building. With connections, that means the entire city is at your disposal! My suburbanite daughter seemed like a lifetime subway rider by the time we left.
The local boulangerie (bakery) was just about 100 meters away, and had fantastic croissants and baguettes from which we made our breakfasts and snacks. The boulanger himself was kind, and knew us pretty quickly since we visited his shop every day!
If we needed more than a bakery's options, we got off the Metro one stop early and picked up what we needed before walking back. So easy!
Really, this was just what we needed for our trip. Thanks to David for opening up his space for others to use!