This isn't a product, per se, but Amazon's MP3 Store has opened our home up to a new world of music consumption. We love the DRM-free files that allow you to share your music with anyone or any computer that you wish, but we've also found other aspects of the service that satisfy our music needs without any of the hassle.
When we read today that it had climbed to the status of the second most popular online music store, we weren't surprised. And, frankly, we wouldn't be surprised if it toppled iTunes' music empire, if they can get the industry behind them.
We love that songs are often cheaper than iTunes, at $.89 per track, and the web interface suits our daily surfing habits, as there's no need to go to a separate program to get our tracks. The DRM-free files mean that we can share our music without any problems or having to give authorizations on every computer in the house. In the old days, if myself or my boyfriend bought a CD, of course we would share it between us, but not so much with iTunes tracks. With Amazon, we no longer have the conversation "go get your iPod, it has that song on it." We simply share and share alike.
While iTunes offers seamless file integration, we like being able to store our files the way that we want. Sure, it's an extra (but easy) step to getting our files imported into iTunes, but we know where the original file is when we need it.