At the moment I am using this to convert text to speech for our online courses. Although I haven't fully explored the entirety of this program yet, I've noticed that the voice quality is quite impressive, and there's a commendable range of voices available. I have had issues with this initially as I like to use safari, and it really doesn't work well on this browser, and you can't preview what you are converting. I switched to Chrome, and I am not having any issues, but it would be good if the developers can look at this. I am still going to give it 5 tacos because it is pretty efficient (on Chrome)! Overall this is a pretty good buy.