I have a Boox Note Air--but no have no interest in using it for notes or "productivity." I just like e-ink for reading, and find screens smaller than 10" to be too small (too much page-turning, no good for PDFs). It's good as a reading device, and I like being able to use Google Play Books and Instapaper (and the way that Boox hides animations and increases contrast for Android apps is clever).

It could use a dedicated "page turn" button.