Jean-Yves was a great host, and met us in person to explain a few important things about Paris and the different neighborhoods. He also sent me some French music to play on his stereo!
The flat is small, authentic, and conveniently located. There is a bed, and a couch that folds out. I let my brother take the bed, and opted to sleep on the couch not folded out, and it was fine.
Also, we used the fridge and washing machine, and everything was in good working order.
Overall, this was a great way for us to experience Paris for the first time. Thank you Jean-Yves!