There's multiple touch zones (which aren't visible or marked), there's multiple gestures you can interact with, and it's so slow and janky enough that you never know what will happen when you touch it.
Will it go forwards? Or backwards? By one page? Or a dozen? Will it open the settings? Or change the brightness? Or just close the book? You never know.
I want to lose myself in the book, I want to forget the device even exists, not fight the device for half a minute whenever it decides to go forward by 11 pages, open the settings, change the font and brightness just because I wanted to go one page back