Even before booking Lionel's place, he was very responsive (and very nice). All the "instruction" we got from Lionel were accurate to the dot. The apt. is very well designed, so although it is not big, it is quite roomy. It was also very very quite during the night. In the apt. we found 'the bible'-the best independent tour-guide we could find! it has everything from information about the apt. itself to recommendations about anything around.
The neighborhood is great, everything is within a walking distance (the Pompidou center, 4 metro stations, and lots of restaurants and cafes), it feels really safe too.
We definitely recommend it for anyone!.