Ran it for quite a while, its good! Some PPA additions to your sources might "spice-it-up" a bit..
Some newish programs like Calf - 0.19, Non-Seq / Mix / Daw  aren't the newest..

On the upside, it comes with the Arduino enviroment, some compilers, -dev packages for common
audio libs, and in general is VERY stable even at low latencies ( < 10ms ).

-Harry