Right now they are offering a 30 day free trial so why not check it out?
So far it’s only available on Xbox 360, Windows 8 and Windows Phone 8, but they are working on apps for WP7, Android, iOS, and more.
Here are a few screenshots from my first test run with the new “Metro” music app in Windows 8:
And here’s the official video:
Lastly, I found a good online music services comparison here on Mashable. Looks like the new service is stacking up well against the established players! I’ve been a big fan (and premium subscriber) of Spotify since it launched, but if I get a new phone with WP8 I might just consider switching to Xbox Music…