Overall the experience at Cyril's home was really good. Cyril is super kind and his house is lovely. We would definetly recommend him as a host!.

PROS
The house is really nice, clean and quiet, the bedroom is large, the bed and linen are really comfortable.
Cyril helped us with local info, he offered us to use his laundry machine.
The area is walking distance to Gare du Nord and it is really convenient with many stores, bars and metro and bus connections. The area at night may look a bit dangerous, but we did not have any issues, St Denis is full of bars and young people hanging out.

CONS
Hardly any. The room it is in the basement, it has natural light, but if you are not used to that, it is good to know it. If at night you have to use the restroom you have to walk up the stairs and through the living room where Cyril sleeps (but he doesnt mind, and was really cool about it).