This is (mostly) a USA forum and that is (mostly, based on Google) a German fixie brand... but Barossa Valley is in Australia? either way I doubt you're going to find much direct experience here. However it does appear to hit all the usual marks for a fast commuter.
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."