Here's my review on this:

Pros :

-OPUS let’s musicians keep close to 100% of their profits for themselves, a truly revolutionary move in the music industry.
-allows for more of the revenue to go directly to the artist, in a more secure, transparent way than ever before
-A feature truly unique to OPUS, fans can now take home a share of the profits simply by creating playlists with all their favorite songs. All you need to do is create a playlist, share it, and watch your income grow!
Cons :

No cons on this one.