I don't have many comparisons that might be useful but the Beresford was clearly better than the Valab DAC I had at the same time and better than the DAC and preamp combination of the Peachtree Decco integrated that has a well-regarded DAC from Scott Nixon.
I've also compared it to the analog output of the Denon 3910 and the Beresford DAC sounds better to me than the built-in DAC of the 3910.