I recently switched from a Mytek Stereo96 DAC to the Benchmark DAC1 HDR. For those of you who know me, you might think I've gone nuts. However, I'm very happy with this change. I think the Benchmark is a better fit for my system (PS Audio GCA-100 > PSB Symphony 6) than the Mytek was. There were also some small additions that I really liked. The plug-and-play USB is a killer feature. It ... just ... works. I was sure I would have to tweak something, but other than changing my output device in foobar, that was it. That feature also allowed me to free up a traditional digital input. The analog input (preamp) is another fantastic addition that I am using.
I think the Benchmark conveys bass better in my system and is more open than the Mytek was. In fairness, it's a small difference. Both are fantastic pieces of gear. If I still owned Von Schweikerts, I might think otherwise. The Mytek was a very good match for them.