Guillaume was great. Very responsive, helpful, and super nice since the very beginning when I reserved the apartment.
Once we got there, he was also very attentive and although we couldn't meet him, we communicated nicely. The place is great, awesome bathroom. The only minimal bad thing is that the location is not THAT great (unless you wanna go the Sacre Cour). Finally, Guillaume left a bottle of white wine for us, something that no other host has ever done. Guillaume has 6 out of 5 stars and his apartment 4.9 out of 5.