I took the Planks Yeti Hunter Jacket and Pants, on about as tough a test as I could come up with, 9 days skiing, including camping, in Scotland.
As it turned out, we only had a couple of days of the national treasure... horizontal rain + high wind but it was plenty of time to work out that this stuff is properly waterproof.
Nothing got through, I was dry even when other guys in the crew were feeling soggily disappointed in their Haglofs and Patagonia Gear.
The breathability feels good despite only being listed as 15k. The pants also have full length zippers down the legs and as such, can be taken off/put on without taking your boots off. Perfect for touring up in shorts and then switching in to for the way down. It also gives you complete flexibility in the amount of venting. I tended to open my zips all the way down to the knee while hiking around.
Looking to criticize, I would probably go either a little baggier, or add some taper/shape to the cut. Planks call the cut oversize, and I'd say with the jackets that's accurate. But in a medium on me (5'9 140lbs), the pants fit pretty regular, the legs are perhaps even a little short, though you can easily sag to fix this by lengthening the bib straps and they won't fall down (obviously). I think I'd go large if I had the choice though.
While some of the Planks colour combos are a little garish, the Blue Jacket/black pants combo I had (see picture) was perfect for me. It's not my normal style of gear but Planks have won me over with this stuff. It does the job just as well as much more expensive stuff, a trend I'm noticing with Planks gear in general, while still looking good.
The Bib Pants have actually become my go to pants to my surprise, I tend to wear them without a jacket and the bib is awesome, it stops snow getting in when you crash jacketless way better than your average pants.
Really comfortable, lightweight shell pants. My only issue with them has been that they started to wear trough at the point where they touch my boot buckles within the first week of using them. The waterproofing is outstanding. Would recommend for anyone who likes a good bib.