My experience with the one I have:
1- esay to use
2- good sound
3- is so small that you can keep it in any place or pocket but,
4- because is so small, you may loose it anytime......
I BOUGH IT BECAUSE MY OLD UNIT (30GB) GET WATER INSIDE AND NEVER TURNS ON BACK AGAIN. SO, I WAS LOOKING FOR ANOTHER UPDATED UNIT AND NO SO MUCH PRICY...AND I FOUND THIS USED UNIT WITH THE EXTRAS....SO FAR IS WORKING EXCELENT. MAYBE I WAS LUCKY BY BUYING AN USED ELECTRONIC DEVICE....BUT IMAGINE A BRAND NEW DEVICE LIKE THIS ONE....SO FAR I'M HAPPY!