Flew XR PH-KA last year before they pulled out. There was only 6 passengers including myself.
I have seen less passengers on board than that too! I can count on my hand the number of fullish flights I saw boarding!
They were terribly unreliable, sometimes they just would never show up!
As for the inflight product, fantastic. Good meal plenty of legroom.
Their terminal crew in KTA was fantastic, full credit to them, they did a great job in trying circumstances!!
Miners also liked using their frequent fliers for the Qantas Lounge and getting upgraded.