I swam as a kid but never really swam laps in a pool until a bout 3 years ago when they built one right across from my office. I love swimming, its fantastic excersize and low impact on joints - my only beef, its extremely boring, spending an hour listening to yourself splash / breathe gets old pretty quick. When I first heard about a waterproof mp3 player I was a bit skeptical, but the more I read the more I really wanted to give it a try. I did alot of research online and this mp3 player seemed to get the best reviews. Ive been swimming with one for two weeks now and my pool workouts have absolutely exploded in terms of length and intensity. Before owning this product the most Ive ever swam in an olympic sized pool was 30 laps in about an hour. After using it for one week, and not swimming for months before - i swam 70 laps in under an hour. Needless to say, music has a huge motivational factor for me, and if you're this kind of person - even if youre not - I would highly, highly recomend this thing. Keep in mind - if you do purchase this, it seems to fly in the face of convention - but - you NEED to wear earplugs for this thing to work its best. There are no headphones with this unit - the pads rest on the back of your cheekbone just in front of your ear canal or just below your temple. It kind of sounds like a cheap AM radio above the water, but put your head underwater and be prepared to be amazed. With solid earplugs in its even better as all of the outside sounds around your are blocked off - all you can hear is sweet sweet music. Just as I couldnt imagine running or lifting weights without my mp3s - i couldnt imagine swimming without them either. Highly, highly, highly recomended!!