It does have some features I am missing in it:
-Option in the admin panel to hide the link under the player. As I can see, it uses GPL license so I can freely remove it adapting it to my needs but and option would be better, I think. And more developer-supportive.
-Song playing title. This one is very important. Hopefully we'll get it soon.
Another thing to notice is that I tested it on Joomla 2.5 and it works (currently it's not marked in the module description that it does).