I have both jacket and bibs in the old Woolrich Cam-Wool-Flage (Advantage camo).
Can't really think of any "cons" other than it's too warm for most of PA archery season and too warm for much walking. The stuff turns a ton of water and is WAY warm. I use the bibs as a layering garment under my Arctic Shield when temps get way down there. Freakin' awesome !!
I have an older Johnson Green and Black Plaid coat, unlined. That coat has been with me on more successful deer hunts than any other clothing item I own. Quiet and sheds a lot of water and even when it gets a bit heavy in the rain it still keeps you warm.
The new stuff is great, but there is not a thing wrong with the old tried and true technology.
I have an old red buffalo plaid Woolrich hunting jacket with matching wool pants. I have not worn it for a few years however I have worn it enough in the past to give an opinion. The advantages to wool are IMO first it's VERY quiet material,second it's almost windproof and third it's very warm. The disadvantages are it's heavy when compared to more modern materials and it's VERY heavy when it gets wet.Even when wet it will keep you warm though. IMO the advantages out weigh the disadvantages!
U.S. Army Infantryman(11B20-Sgt.) 1978-82
172nd Arctic Light Inf. Brigade (Alaska)
9th Inf. Division