Can I say how much I hate having each screen register as a page? It's a nuisance for navigation within a book when I've changed font size and it's worse than that when I switch devices and the second one hasn't synced (my purse reader, for example).Before, I could just remember my page number and go there.
ADE page numbers had the advantage of being consistent within a book, across devices
and across my library as a whole, which let me estimate how much time I had left in a chapter and a book. As it turns out, I'm better at that than Kobo.
I'm generally not that fussy, but this is a major inconvenience. Kepubs have gone from having a meaningful page measure to one that's useless.