I host my Plex server on this unit.  It handles the transcoding load from multiple internal/external sources all at once without breaking a sweat; CPU usage is a joke as it always seems to have plenty of room to go.  It's been a great unit for me so far (knock on wood).  The big achilles heel on these are their power supplies.  I suggest having an extra power supply waiting on the shelf as it is bound to go out.