Was looking for a non leather winter boots with insulation and waterproofing and these seem to fit the bill. They were on sale and figured I'd give them a shot and they are mostly good, 7/10.

Pros:
Great waterproofing so far
Decent traction but nothing to get excited about
Not as narrow as other Salomon shoes,if you have normal feet these should work.

Cons:
Frankly they just lack stability.Went on a short walk in foot deep snow and these just don't have much structure. Additionally, I feel like there is too much volume in the shoe overall and can leave too much play for your foot to slip around.
I feel like a could have sized down half a size and perhaps these issues would be fixed but unfortunately my wife threw away the box so I'm unable to exchange them.
These are insulated but the material is so thin I don't think it really makes any difference.
Durability remains to be seen but I wouldn't trust these for much more than walking around town, I definitely wouldn't do any winter hiking in these.

Overall if you need a shoe to go out into town during icy snow days for a cheap price, I'd try these out. Beats walking around in giant rubber boots for sure. I would probably just go with a winter hiking boot though that way you don't need more pairs of shoes.

True to size. Comfortable. Handled well 28F weather for about 30 minutes time, did not have time for longer testing. Looks like they are quality sporty aka winter sneakers. I would recommend them to my friends.

Make yourself a hot chocolate, and tuck yourself in with a blanket for a long bed-time story. I tromped around in the snow and slush for a couple hours just to test these, and I have opinions!

TL,DR Summary: A great warm boot that will probably last a few years, but definitely targets narrow feet. Haven't decided if I'll keep it yet. Shout out to BC for having amazing customer service!

First: the fit:
I typically wear a 10-10.5, rarely an 11, depending on brand. I got these in a 10, and they were the right length. I specify LENGTH, because salomons typically run narrow, and these are no exception. Right out of the box they hugged my foot like a sock across the forefoot, from the arch to the toes. I have slightly-wider-than-average feet, but mostly average. If you have wide feet or fat feet, or like wide toe boxes, start thinking about moving on.
I also had a small amount of heel lift or heel shifting. Not really enough to instantly cause problems, but enough to make me think about the potential for blisters.
Now, all those fit notes aside, they were actually pretty darn comfortable and pretty warm, without being sweaty foot ovens.

Next up: Testing!
I went and tromped around in a big wet snow here in CO for a couple hours. I stood in gutters with 2-3" of standing ice water. I made sure to really test the waterproof-ness. Not only did my feet stay warm AND dry, but when I walked inside, a simple wipe of my hand and these boots were magically dry.
This is a good thing and a bad thing. As you can imagine, this means that they shed water excellently. My fear is that this also means that some of the waterproofing is a superficial treatment and not a true WP membrane. superficial treatments or surface membranes tend to breakdown and fail within a year, while true interior membranes can last a decade or more. I can't comment on which this shoe has, or both. But I can say that it is fantastically waterproof! And warm enough to keep my feet toasty in freezing snowy wet temperatures!

Next up: Insoles
Why do I talk about the insoles specifically in this shoe? Because in this boot, the insole is half the magic, but also half the problem.
Let's take a tangent for a quick minute to talk about how I came to this boot. I've been wearing minimalist and zero drop footwear for the last decade or more. Even my work shoes are zero drop. Basically all my shoes EXCEPT my winter shoes and my mountaineering boots. This is mostly because no one makes a zero drop mountaineering boot, but that's not what we're discussing here.
About a decade ago, maybe more, I grabbed a pair of gore-text salomon shoes. I think the model is something like olius? Solius? oleus? whatever, it doesn't matter. The point is those are STILL my winter and spring bike commuting shoes here in Boulder, CO. I bike in them in sub-zero temperatures, in snow, in rain, ice, slush etc. Any time it's cold and/or weathery, I've got them on. Problem is, they've got some holes in the gore-tex that let's the moisture in. Now, because I prefer minimalist and zero-drop footwear, I've taken the insoles out. They're probably about a 7mm drop.
I've never had a really insulated pair of footwear, and saw these and thought let's give them a shot. I've already talked about how they hug your foot, which is definitely not my speed. So I tried taking the insole out like my old Salomon shoes. Low and behold, ALL THE VOLUME!
Without the insole, these actually become a comfortable wearable shoe! And probably sit around 6-8mm drop. (Thus the comment about the insole being part of the problem.) It also helped my heel shifting issue almost go away!
However, the insole is actually a FANTASTIC insulator. Without the insole it's like sleeping on the cold hard ground with a down blanket but no sleeping pad. So I've played with a few different insole options, and found that most offer more volume but less insulation than the stock Salomon insoles. Trade-offs!

I have a hard time with fit. Measured with a Brannock Device https://brannock.com/ I am exactly 12.5 which is a very hard to find size.
Ordered a 12 based on their sizing guide and the length was perfect so I am going to say these run large.
Unfortunately (for me) , they are narrow in the forefoot and the foot bed was kind of weird, not enough arch support so I sent them back.