Better do your due diligence when it comes to tube purchases. A wide variety brands, hierarchy within brands, NOS vs. new, distributors, shippers. And then the vagaries of circuit design within the tube equipment. Blame for failures often confused.
Purchase tubes from well regarded distributors/retailers, testing of tubes at this level important. Make sure tube specs match the equipment it's being placed in, many tube equipment manufacturers run their tubes hot, not good for reliability. I've seen many repeated tube failures in certain equipment over the years, tubes get the blame when blame should have been assigned to equipment manufacturer. Shipping extremely problematic, expect handing of packages to be severe, either immediate failure of tubes or shortened tube life to be expected, extreme measures in safely packing tubes needed.
Being observant of all the above I've had widely variable experience with tubes over the years. NOS/New production aprox. same for longevity/reliability. Mostly I've had good luck with tubes since I've paid attention to above. As for Psvane, I've had a couple failures of 101DWE, this due to excess heater voltage, once heater resistor changed out no more failures. No issues with lower level Psvane or Acme 300B's, various 845's.