Wonderful!!!
We had another AirBnB booked for our trip, but the host was totally unresponsive, so at the very last minute, already in Paris with nowhere to go, we booked with Erwan and Florentine. They accepted us immediately and though they were out, arranged for a friend to meet us, show us around the apartment, and give us keys.
The apartment itself is beautiful- very bright and airy, very clean, and well-equipped. Full kitchen! We had six people in our group, and everyone was comfortable. The apartment is on a quiet street in the heart of St. Germain des Pres. A very short walk to wonderful cafes, restaurants, and markets. Walk 10 minutes north to the Louvre and Notre Dame, 10 minutes south to Palais Luxembourg.
Absolutely nothing bad to say about this apartment, or our hosts' hospitality. I would definitely recommend staying here! :)