I’d rate the location high for convenience, just a short walk up one street fro Gare du Nord. I gave it 4 stars because the 1 km circle around the train stations (Nord and Est) is a bit rough. The place is clean and stylish, floors, walls, ceilings all painted white. Beautiful comfy bed with adjacent bath shower. Down a narrow hall is a sunroom with a Day bed, sofa, kitchen table and couple of chairs. This room serves as kitchen, but there is no sink, no water source. It opens to a semi-private patio in the buildings inner courtyard. Because the flat is in the inner courtyard you are greatly shielded from street noise. Seems quite secure. Beware in summer weather you will be cooked out of the place before noon, unless you see in the amenities that Petter has added a fan. All in all I wouldn’t hesitate to return for the convenience of being next to Gare du Nord. Perfect for returning to CDG.