I used it once, listened to it in my pocket while I went running but it kept freezing and since it has moving parts I figured it'd just be best to buy a Shuffle. It's perfect, 512mb, perfect amount for my running playlist with room to spare as it doubles up as a memory stick. I love my shuffle, always thought it was a bit useless, but with the lanyard I never find myself without it, whereas the 5g takes up a lot more space when I've got to carry my phone, wallet, keys, cigarettes.