My stay at Grégoire's was near to optimal, on several aspects. Grégoire is one of these guys worth meeting, having lots of interests in literature, life, politics, etc. We ended up sharing a few evenings, cooking for each other and exchanging on various topics. The place was in addition extremely well located, allowing me to come back for lunch (I came for a conference near by), and enjoy the neighbouring architecture, activities, cinemas, etc.
I highly recommend.