In fact, the shortcomings are very insignificant, and the book fully justifies its price tag. Kindle has long been the unspoken standard in the world of e-ink devices, and this book is just proof of that. I recommend to buy. Different pros: 1. Great screen 2. Nice backlight 3. Small size 4. Workmanship 5. Convenient touch control 6. Very good for manga (there is even a special version) Cons below: 1. Many functions are tailored for the English-speaking reader 2. The need to convert to the desired format (Calibre still decides) 3. Difficult to get in our country 4. You may need a jailbreak.