Eva,
I initially started this thread on November 26, 2016. Three days later, you initially responded. Your response was very diplomatic, but you basically blew off the suggestion of a User Guide with best practices. I am pleased to see that you are beginning to reconsider, now that you are hearing the same thing from others around the world.
I am a CPA and consultant in the US. I paralleled my own company's QuickBooks with D365 BE throughout December, 2016. I considered this to be the best way to learn the solution. I went live with D365 BE on 1/1/2017.
I think the entire O365/CRM/D365 BE solution is truly a revolutionary step forward in I.T. I intend to convert others from QuickBooks/Sage/Dynamics SL/Dynamics GP/etc. to D365 BE when I feel the solution has matured to the point where it demonstrates itself as truly superior.
You've mentioned producing a number of different types of learning aids. Please start with something that explains each page within the solution. You can call it a "User Guide", a "Learn more" or anything you like. In any event, we need to have one comprehensive place to go in order to see all this solution includes. The additional learning aids you've mentioned would be nice, as time permits.
The clients I deal with trust me to do what is best for them. I will not betray that trust by bringing them to D365 BE prematurely. I would estimate it has taken me 5 and 10 times longer to learn D365 BE than it should have taken. This is due directly to the lack of documentation.
I would not put my clients through this same ordeal--nor would they put up with it. They are not stupid people. They would drop D365 BE (and me) like a hot potato.
I realize my views are somewhat self-serving, but I have made a large commitment of my own time to D365 BE and believe it has tremendous potential. I also believe the steepness of the learning curve is the worst drawback to implementing this solution. By bringing this solution out without adequate documentation you have not only shot yourself in the foot, but you are also hampering the rest of us who are committed to implementing this solution.