I've the Uniqlo UL Down Hoody and it performed well as an insulating layer under a light 2.5 layer rain jacket into the low 30's. Using it inside a primaloft one insulated jacket, I was able to take it down into the low teens. Base layers: light wool sweater, dress shirt, and an undershirt (Work), or a light powerstretch fleece & a long sleeve synthetic (on the mountain). For the price, it couldn't be beat. Though, there's a few things that always bothered me. It woud leak down fairly frequently, I always ended up with more than a few feathers on me, the unadjustable hood and the zipper is more or less broken and thus requires delicate handling.
I'm thinking of "upgrading", what do people think of the Patagucci UL Down hoody & the MH Ghost Whisperer?
Quality of the zipper?
Down leaks?
Warmth (the hood plays a huge factor)?
Fit? I tried on the UL down hoody this week and found that the sizing is odd. Usually I wear a small but the Patagucci was far too small and I to size up and it's a tad bit too big.
If it can be compared to the 7oz Uniqlo UL down jacket, that would be fantastic.

