Hi Underscore,
It's really from the Deep Guide channel that I got on track of the Nova 3. There was excellent info on the different Onyx Boox readers, and that's why I bought the Nova 3

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The PDF however doesn't really fit my need, and to be honest, I think it is too expensive if you compare it to modern apps. The year should be configurable IMO, and if you could use it for a couple of years then maybe.... I do appreciate the work that was put in, but at this price and functionality it just isn't hitting the right spot for me

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Thanks for the headsup though, good to share this kind of information. It will be useful for others as well.