How is it bad? What is the problem? The only thing that doesn't work properly is displaying PDF because many PDFs are setup bad. And sometimes - in epub - images are too small to display properly. That is something that really can be improved - image display and handling.
Not responsive enough when changing pages. Too much tech crammed in to ramp up the price of something essentially worth $15. Navigation is unintuitive, it's hard to get stuff on the device. Not all formats are supported by all readers and PDF support isn't what it should be. I can't turn pages with either my left or my right hand, no easy switching beween books and if you've got more books on there than the average person, like maybe 70, you're already screwed to find what you want to switch to reading at the moment quickly.
PDF display is another pain point. We are over 10 years into the Kindel era but it's still a problem to read PDFs on all ebook readers. Why? Why are there no display guidelines so you can read them with ease or at least a way to reformat them so they can be read in an eReader?
