I have one. It's not quite the same. There's no front-panel audio connector because that was a source of electrical interference on the original. It also has different capacitors, and a different - reportedly better - headphone op-amp.
I don't really know how to objectively test audio but happy to run some tests if there's something I can do without specialized hardware
Subjectively, upgrading from an ASUS Xonar Essence STX (the original), I am very pleased. I'm listening with a set of Massdrop Sennheiser HD6XXs and the audio is crystal clear, big sound stage, and positional audio in games like Battlefield V is incredibly accurate.