Myself and my 11year old son absolutely loved staying at Gaspard's apartment.
It's exactly what it says in the listing; an artists space, as such it's full of books and paintings, but it manages to never feel small.
It's a lovely place to just sit at the table with the big windows open on the beautiful courtyard, and enjoy a glass of wine.
Location wise it couldn't be better either, you are right in the 11th, with all the amazing Parisian bistros, bars and restaurants within a few steps.
And Gaspard was an excellent host, really responsive and helpful, super nice guy. Would absolutely recommend this place to anybody wanting a real Parisian experience.