I've had the misfortune of traveling through Chatelet Les Halles at busy morning rush hour dragging luggage with me to Orly Airport. Luckily I learn from my mistakes. So now I'd appreciate someone telling me if Lemoine or Jussieu are "busy" metro stops or are they do-able with luggage? I'm heading to Gare du Nord via line #7. Any words of wisdom here? I'd rather not learn another lesson the hard way like I did with Chatelet Les Halles. Thanks!