M+ required a 69 slide deck of CQ for training, then required 6-9 weeks of fumbling around in the app for OJT, and then a FAQ put out by the EFB team listing best practices and work arounds (day/night).

OakNotes was made by a line pilot and was intuitive to use right out the gate....not distance learning, no FAQ, no work arounds....it was simple and it worked.