Simon was a great host
The flat is better in real than on the pictures and located from walking distance from Gare du nord and 2 min walk from Chapelle metro. The area is very busy with lots of shops and restaurants.
it is a very bright flat with everything you will need for a short stay in Paris but most important i felt safe all the time. The building has 2 gates downstairs accessible only by electronic keys.
I will stay again and really recommend it.