I have a warm zip jacket by Mackage in a wool blend and I'm quite happy with it, but I have it in enough of a rotation that I can't comment on durability (after a few wears it still looks about brand new).
I like them for putting 5-10% cashmere in lots of their jackets -- including mine -- despite a lower price point than comparable brands.
However, I have handled some of their leather jackets at Holt Renfrew and I was not impressed with the feel (same goes for "D&G").
I haven't handled their polyester jackets in person, but I noticed they are putting down padding in some of their wool pieces this winter and I like the results (e.g., Brady and Chad jackets @ mackage.com). I'm not sure if I have it in me to pick up another winter coat I don't need, though.
This is the one I have, from FW10:
