Claire was a perfect host, always ready to help. The communication through emails was faultless.
The location was perfect, near to the Champs Élyssées and the Arc de Triomphe.
If I had to say something bad, it would be that it does not have elevator, and it's a 6th floor appartment and that the toilet is shared. Also, it is a really cold appartment, and even with the heater on, you could feel the coldness from outside.
Nevertheless, if you are in Paris for a few days, this would be just perfect.