Yeah, this stuff is great, but watch out for one thing - you can mostly clean synthetic fabrics like these, but they start to develop a weird smell after a lot of use.
Bicycle people love the stuff - it "wicks" moisture away from your skin to keep you dry, and doesn't lose it's thermal insulation benefits when wet - but they also know that it starts to stink after a while.
I've got some synthetic winter gear, but I mostly use piles of wool garments - old sweaters and pants picked up on consignment, new wool socks, etc - and it works just as well as synthetics. It tears more easily and some people find it scratchy, but you can use and wash it basically forever.
The one thing that I haven't managed to go full-wool, or full-natural-fabrics on is gloves. I use wool-lined leather gloves until it gets to a certain temperature, and then have to switch to synthetic pogies. I've got wool mittens, but line them with plastic on really cold days.
Full disclosure: it hasn't dropped below 20F here yet. Below 15 degrees Fahrenheit alkaline batteries stop working and tears freeze - way to maintain, Colorado peeps!