Are the audio books off Itunes any good?

I want to buy The Hunchback of Notre Dame audio book off of iTunes, simply because I am terribly nearsighted (I need my contacts to see 6 inches in front of me) and the copy of the book I own has font that's size 10. I have never bought an audio book off of iTunes before, so I'm not sure what the quaitly of it would be. Can you tell me your experiences with their audio books?