Amazing but not surprising story. I know how well my eDGe works for me for work (EDUCATION) and my personal life (organization). My guitar wiring diagrams are on evernote and also in my eDGe library so it makes finding what I need no problem.

I think the only problem would be the delay between pressing the 'next' button and the actual eink page flipping.

** actually, page delay in only slow on pages with annotations on them. Regular epubs and pdfs are not slow.