If travelling on the Eurostar this apartment is super convenient! Literally a 5 min walk from Gare du Nord. There are suitcase lockers at the station if you need, I think we paid €6 for a medium size for a day.
Both Franck and Patrick are very welcoming and on hand for any problems if they should arise - we had none!
Really appreciated the little booklet with local recommendations and guidebooks to help with your plans.
We would 100% stay again.