What of the OEM specs of 10cm accuracy, only 31mA during transmission, 64mA in receive --which is usually not battery powered-- and its claims of months-to-years battery life using a coin cell? Did you overlook this or are you testifying anecdotally oR about your direct experience?
31mA is significantly more than most coin cells are designed to supply - while a new one may be able to reach peak currents of 50-100mA this significantly reduces battery capacity, and is only possible with a new battery (once it's partially discharged it cannot sustain these current levels any more).
I designed and built devices based on the DW1000, so I'm not "testifying anecdotally". If you have specific questions, please ask, but I won't be baited with generalities.