I'm a jaws user. Therefore, I can sort of give an insight into what it it's like to have novels being read at such a speed. Sometimes you miss things. A speed or two down is fine. Mine's at seventy percent of the max, and the rate will vary with what synth you use. You can choose from a variety, Eloquence being the default.
When I'm reading, people get upset. Especially fellow whiny high school students who don't understand that I hate hate hate hate hate being held down to the level of what feels like first grade. Yes I can read smoothly from a braille display. Give me paper and I cringe. I don't use braille with my computer. I don't need to. And not every program works with jaws, if the program is horribly graphic, good luck.