Pierre's place is cute. Like most Paris apartments it's small, but this is a city where a 20 sq m place goes for a quarter of a million Euros even out in the 18th.
Of course there are compromises. You have to climb over the toilet to get into the shower. But it's all nicely bohemian. The kitchen is fairly well equipped, there's a stereo. The bed is fairly comfortable.
All in all a great little place for a few nights.
A couple of caveats. The area is a bit edgy. France doesn't seem to have handled race relations well. The north of the city around the Gare du Nord is ethnically very mixed but apparently not very integrated.
And good communications with Pierre are important. We'd explained we needed to leave at 11am on our last day to get the train (if we'd delayed we could have missed it) but Pierre was a couple of minutes late and we met him on the corner. He wasn't very happy that we weren't waiting in the apartment (presumably so he could check it - something that hadn't been explicitly explained). My advice to anyone booking this place is not to assume that everything is understood but to double check, that way everyone is happy.