You do know that what you said is like I can buy a $500 cup to drink out of and the reviews said its fantastic and worth it, when there are cups for as low as 50cents that do the same exact thing.
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From what I can tell from the descriptions it has 4 stereo line outputs, which is the same as an audio 8 (without the inputs). It's basically that plus an X1, I don't think the €299 price tag is ridiculous at all.
Unfortunately it seems to be 16 bit, which is less than most pro level interfaces.
I'm surprised they don't do a version without the sound card, for timecode users for example.