The best productive app I have. I’ve even dropped backpack for it. It just has so much more to offer then backpack, originally I thought they were two different things but when I started looking at how I use backpack I couldn’t figure a reason not to make the switch. With the firefox extension it makes it so much easier to collect notes and links for my current projects something backpack makes a pain out of doing. The one thing I do miss is the tasks feature within the projects/notebooks but supposedly Google Calendar is going to have tasks soon so it makes more sense to have my tasks associated with my calendar. I would suggest notebook to all especially if you use firefox.