Stoney Creek Hunt Lite Coat - Opinions

Would be interested in people thoughts on this jacket. Especially interested in the claims made about the 2nd layer. From the little I've read, dirt, soot, etc can be a problem with waterproofing and breathability.Thinking it could be a locally available jacket that's big enough for me. Stoney Creek gears seems pretty well made. http://www.stoneycreekshop.com.au/index.php?controller=product&product_id=162