So I really like eInk readers to read on.  We have tablets for pretty much every person in the family in multiple sizes... still, I prefer to read on a eInk reader.  I've owned a Kindle 2, and 3, & a Nook Classic, so this is my fourth eInk reader though I have had a grey scale reader, Libre Pro, which is similar in that it has no backlight but the contrast just doesn't compare.  Still even that is easier on the eyes for long length reading than the tablets.