If you are interested in listening to audiobooks, this player is great. I have been using it for a couple of years now and have listened to hundreds of books. I had a problem with the first one I got; the on/off button broke off but they immediately replace the unit and I have had no problems since then. Sound Quality Excellent sound quality. Performance I really like that it keeps your place in your book when you turn it off. The pause does not, however, so you have to remember to start it again before it shuts down or you will lose your place. Battery Life I have been using this unit nearly every day for over 2 years and it still has a good battery life, probably 6-8 hours. Durability I bought a skin to protect it and have dropped it several times, to no avail. Ease of Use Very user friendly. The only thing I do not like is that in bright lights you can not read the screen AT ALL. Design Wish they could fix the inability to read it when in bright lights or outside.