Me and my two friends spent four nights at Paris and we loved our stay at Alexander's place. The flat has a separate bedroom with a bed for two persons and for a third one there is a surprisingly comfy sofa bed in kitchen/living room. Alexander had also reserved clean towels and bed sheets for us. Kitchen has everything you need to make breakfast and dinner. The appartement is decorated warmly and personally and Alexander had left notes and instruction to help our stay. Like in all apartments in France, the floors can be a bit chilly though, so remember to bring woolen stockings with you.
The location of the flat is perfect. It's near metro stations, bus stops and Gare de Lyon. The neighbourhood is nice and lively: there are many pubs and bars, bakeries, grocery stores, cafes, restaurants and markets. We were able to find food even at Thursday midnight! The ambiance is chilled and we felt safe also during the night time.
Alexander is a really nice and helpful host. He answered very quick all our questions and considerations. Check in and check out were also easy and flexible. I strongly recommend this place!