I had a really good time staying with Dominique and recommend his place. The first two days he wasnt there, but his friend A. welcomed me. I didnt know A. was also living there, and was for a moment surprised, I expected to stay only with Dominique. However, A. is also super nice and I was very comfortable around him, as well as around Dominique.
The apartment is also located really well, lose to the Canal St Martin, where you have many nice bars etc.