I'm part of a Denafrips group on FB and the Pontus updates seem to be getting a much higher percentage of mixed reviews after the firmware update than the Ares II.
I'm now really curious to see how things play out as the upgrade is released to each successively better DAC.
I'm wondering if the Ares II is at a perfect level where the differences are heard almost entirely as an improvement, but the more resolving the DAC (and likely overall system) is the more the differences will less obvious and rely more on listener preference. It's possible that the differences become more significant and as a result sound more like a new product than an upgrade to the current one.