Perfect location. Right next to Metro station lines 2 and 4. Gard de Nord is only 10 minutes away. Area is really nice but very busy. However, I did not feel at all not safe with my wife and kids even at night. Lots to do nearby.
I will certainly come back to it when in Paris. The host (husband and wife) are very responsive and will give you what you need within minutes. Was very happy with the experience.