I have a Tachyon anorak and its one the best pieces of gear I own.
DWR is perfectly fine for me, as is breathability. I've used it in really crappy Japanese weather all winter, snow, torrential freezing gale-blown rain, etc. In the rain it wets through, but has the right combo of windproofness, DWR and breathability for me that I stay perfectly warm and comfortable underneath. That's the trick. Maintaining body temperature just how you want it.
Sheds snow and frozen stuff perfectly.