Have you heard of or tried WorkFlowy? These days I’m all about simplifying, so I started testing it today. So far it seems like a dead simple project/task management tool using an easily searchable, collapsible/expandable list, complete with # and @ tags.
I would love to hear about your experience with it. Try it out at: https://workflowy.com/
Oh, and the mobile interface on Android works well, too.