See what trusted publications wrote about Reader Mode
"The dyslexia tools are one of the places the extension really shines. With those, you can choose between a number of different fonts designed specifically for dyslexics."
"With so many features, from a distraction-free reader to dyslexia support and text-to-speech, Reader Mode is an excellent extension. It could change browsing experience for many users, especially for people with dyslexia and other learning disorders as well."