Emma's place was great. It was just me staying there, so there was plenty of room, but it would certainly be comfortable for 2-4 people. The kitchen was perfect for doing your own cooking. The bed was comfortable, the shower water pressure was great, and the apartment was quiet at night. The decor made it feel very homey and welcoming.
The neighborhood is lively but not touristy, which i like. There is a InterMarche just next to the building to buy food and a great boulangerie one street away. The place is about 15 minutes at maximum to Gare de Lyon which makes it easy to get to and from the airports.
Emma was very communivative and helpful. I enjoyed my stay a lot! I recommend you stay there too!