Templating is improved by taking advantage of Joomla 2.5's override methods.
I always end up paying less for any add-ons I need to go with it than with other carts.
On top of all that, I get great support from the development team.
Support for this component is good as well. However -
The language file does not allow exclamation marks (!).
The removal of jobs leaves entries in your database that can show up in the frontend (duplicates).
1. Super easy to install.
2. With some custom code, multiple user types can upload songs from the front end.
3. Has some good styles built-in with many options for custom styling.
4. Loads songs from multiple directories, easy to have different media source directories.
5. Good documentation.
6. Excellent Customer Support. I got all my questions answered within several minutes of hitting "send" :)
7. I would pay $60 for this if developed as a Jomsocial extension.