Our stay at Yvan's place was just perfect. The location is really good for the people come to see the city. Just 2 mins walk to metro, from / to airport is also 2 mins away. Its also very central, to seine river 5 mins and then you can walk all along to Notr Dame etc.
We liked it that much also because Yvan made it really simple for us. Our communication was good. And the flat it self is in a cute old Parisian apartment with a nice view. Bedroom is enough for two, also have a hanger and drawers.
So short summary: I definitely recommend Yvan's place!