I am a bachelor undergraduate in Computer Science and I have been using m92 for more than a year now. I was also a bit hesitant about the refresh rate and the rendering of code etc.
This is probably one of the best buys I ever made. Since I bought it, I didn't have to pay a penny for a book. I just download all the books I need.
The refresh rate is annoying only in the case that you want to close and open new books all the time. Otherwise it's not a hustle and you get used to it in the end.
The battery lifetime, the screen size, the absence of eye-strain and the ability to get new books all the time for free are huge pluses for me and I would not go back to paper books. I look at my bookcase and I am thinking what a waste of space and money all my books are taking. Soon I will sell them.
PS: I have used the ebook for biology, neuroscience, programming, Linux terminal, networking books etc.
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