In reply to kp1:
I have subjected my Tupilak to 4 years of heavy use, daily dog walks in winter as well as on the hill, so must have been worn several hundred times. It is an excellent jacket for when the going gets tough. I would buy another. Just spotted the first signs of delamination at the back of the neck, but still watertight, and I hope to get another year or two out of it.
It's predecessor was the Lhotse, which lasted 5 years (including 4 Orkney winters). Not as robust, but still an excellent jacket.
Can't comment on Narrona.