This is my primary data server. It is currently running headless tucked away behind my entertainment center. It is running unRaid version 4.7 free. I plan on upgrading soon to the paid license and adding a SuperMicro AOC-SASLP-MV8 SAS card and another NORCO cage to expand up to 10 drives.
The build was super easy. Only real issue was the onboard Realtek NIC on the Biostar MB seemed to have issues with Linux and would not negotiate to gig speed, hence the add-on Intel card.
It's been running like a champ 24/7 for several ~6 months now and I couldn't be happier with it.