I have had Wolfskin bibs and a jacket for 6 or 7 years. I love the stuff. It is my favorite by far of all my hunting clothes, and it is worth every penny. It has no drawbacks that I have discovered.
Mark (the previous owner) used to caution that it is not really waterproof, but he added that once, wearing it, he rode around on his motorcycle at 60 mph in heavy rain for an hour and water didn't penetrate. It dries very, very fast. Simply putting it through the spin cycle in a washing machine leaves it dry.
It is not puncture-proof in the way that cordura is but you have to work at poking a hole in it. Your basic cat-claw briars and thorns are probably not going to tear it the way cotton will tear. I am told that the orginal version was somewhat more prone to punctures than the version on the market since 2000 or so.
I have the uninsulated versions. When temps drop into the low 20s for tree stand hunting I wear them over a couple of sets of long underwear, wool shirt, your basic, nothing special stuff. I find that even without a windproof liner, the stuff breaks the wind quite well.
I have it in Predator Gray and have no complaints about that either.
I second the praise for the current owner, Jeff. Great guy, easy to do business with, honest, helpful and he gets stuff out without delay.