I can't tell you how excited we were to try this reading accommodation! We have had PDF readers for quite a while, although Speechify is the most natural sounding reader I have heard and the options of different voices, dialects, and languages is remarkable!
This helps poor decoders a great deal to say the least! So, if a dyslexic student is in the classroom and has access to a laptop and headphones, there is no reason for a student to be excluded from classroom reading materials.
I highly recommend this for certain students - specifically 4th grade and up depending on their skills. But it takes training...Please do check out the website and contact them to learn more.