It enables you to share all of your new songs – with a single click – across multiple platforms, saving you time and effort. If I'm not mistaken, ArtistData enables you to do the same thing, as do other artist sites like ReverbNation.
But if you're an artist that wants one tool that does one thing well, this might be what you've been looking for. If, that is, you're willing to pay $10 a month for it.
Take a look:
(via Mashable)