I installed armbian on my Orange Pi PC to build a music streaming platform, with digital crossover to perform active bi amplification.
armbian performed perfectly out of the box for that purpose. The thermal behaviour of the OPi PC is very good (much better than with the openelec version).
I had issues with my project, but none related to armbian or Orange Pi PC
I wrote a wrap up of my experiments here: http://www.diyaudio.com/forums/pc-based/293362-orange-pi-digital-crossover-2x-usb-amps-wrap-up.html