the battery is great-about 12-14 hours from 80% charged.  I was wondering how i would like an e-reader vers a book, and i must say that i don't even notice the difference.  love everything about it.  The only thing that could be better is the on/off function and wi-fi.  the power button is very sensistive and is tricky to turn on (at first).  the ewifi range is short.  maybe 30 ft from my router is all i can go.  other than that.  it works great, and at a very fair price