Although I didn't get the pleasure of meeting Grégory in person, he was very helpful and easy to contact. We did have the pleasure to meet Mr. Doir who was very pleasant and patient with our late arrival and broken French.
The place was great. It's in a trendy and eclectic neighbourhood with great access to the Metro which can take you anywhere in the city. The apartment was bright and clean and had everything we needed. It's quite small, so it would be ideal for a couple or 3 people. All in all it was an awesome time. Definitely book with Grégory for your visit to Paris! Oh, and the free wifi is a HUGE sell point. After traveling with shoty internet everywhere, it made it so much easier to plan and map out places to go. Thanks Grégory!