Jean-Leon's was great. Clean and comfortable and really close to two different metro lines.
Sac Ceour is a 10-15 minute walk and nothing is hard to get to with the proximity to the metro.
Jean-Leon was really helpful when we were due to arrive before check in time and gave detailed instructions from Charles delGauls Airport. He was there to meet us and helped us plan for when we left to go to Euro Disney on the last day.
Would recommend his place