On a perfect location on a walking distance from the nicest parts of Paris, we have this tiny apartment which I decided to book for a three weeks' stay for work. Dragging a heavy suitcase to the 6th floor (no elevator) was a challenge, but once you overcome that challenge, this studio provides a perfect base for your activities in this lovely city.
Nino, although I wasn't lucky enough to meet him, is a great host and easy to contact for any question or need.
The building as well as the apartment is of the simpler and older kind (put away your expectations of modern luxury!), but anything you could possibly need, even for a longer stay, is there and works. As I said, it's very small and by no means suitable for more than one person. After getting used to the space available and calibrating you senses and stuff to it, it's absolutely adequate though. That said, it's very charming and I liked having it as a 'home' to come back to after a days' work.
Thanks, Nino, I'd love to come back in the future when the opportunity presents itself!