New iPhone App: FreeAudioBooks

Anyone else have this?  I just downloaded today (like the ‘Freebooks’ app, the books are free, but the app is $1.99) and am intrigued.  As a test, I downloaded “The Raven” and The Autobiography of Benjamin Franklin.  The reader on the former wasn’t very good.  The latter was ok, but I’m not sure the app allows me download more than one chapter at a time if I’m only on the 3G network as opposed to WiFi or the internet.  Any experienced users of this app out there?  I’d love to hear from you.