I think the most important thing to know about this place is that if the weather is extremely hot (90s Farenheit), it may be too hot to sleep at night. Many places in France do not have air conditioning, but because this place is small, on the top floor of a building, and has only one window, it bakes all day and maintains that heat even at night. As a result, I wasn't able to sleep for the first two nights of my trip until around 6am in the morning when it hit the low temperature of the day. The management company had said before I arrived that they had fans to cool the apartment, but when I got there, they had run out of them and weren't able to provide me with one unfortunately.
Other than that, this place was as expected from the pictures and if I had been there at any other (less hot) time of the year, I think it would have been a good choice for a solo budget traveler. It's small - too small for more than one person - but cute and efficient, and in a good location. It's not super close to popular tourist attractions, but it's easy to get to them on public transportation. The neighborhood felt relaxed, not too tourist-y, and safe at night even when coming home late.
Top tips for staying here are to download the Lime scooter app on your phone (it's a great way to get around and see the city!) and to make sure the person showing you around shows you how to close the window for privacy when showering. Note this listing is run by a management company, not an individual owner, so I interacted with an agent from the company rather than the owner/host.