The appartement was nice, the kitchen is equipped with evth. you need and there is a washing machine you can use. Be aware that the bathroom has no door, just a curtain. Also the communication was really easy although we didn't meet Grace in person. There is a lockerbox for the check-in :)
During our stay we read in our travelguidebook that tourists should avoid the metrostation where the appartement is located during day and night and because there were a lot of young people sitting around in front of the appartementbuilding, we felt a little bit unsafe and started to come home as long as it was bright. besides that evth. was fine :)
just in case you arrive at porte maillot, do NOT believe the people who tell you they help you buying a ticket for the metro. unfortunately we were ripped off.