My friend and I stayed at Charlie’s loft for 4 nights and had a lovely stay - it is in a central location that is easily accessible to and from major attractions - and is in close walking distances to metro stations. The neighborhood also felt quite safe - even in the evenings and at night. Charlie provided detailed instructions for check-in and check-out and was always very responsive to any questions or concerns that we had. There were little touches that we appreciated - such as the welcome bottle of wine, fast and reliable wifi, and our personal favourite, the Bluetooth speaker.
The apartment was the perfect size for us - just be cautious on the stairs to the mezzanine (as there are no railings) and be careful if you are tall while on the mezzanine. Overall, the apartment was perfect for our short stay in France.