I am not much of a slipper guy, but I'm even less of a cold feet guy.  I found these slippers, made by a brand I can trust, and they delivered on all aspects.

Construction:
-They seem well-built with quality, straight stitching.  They are not heavily sewn -- meaning they are strictly slippers -- but seams and craftsmanship are top-notch.
-The sole is attached with only a single stitching of medium-gauge thread.  It does appear that the sole is glued as well, so this may purely be cosmetic or as a redundancy.
-The interior is what you would expect of a Sorel product.  The "fur" is heavily-matted and dense, warm (even when outside), and will hold up for more than a month or two.
-The exterior is made of thick nubuck or suede.
-It wears like a slpper.  Meaning that it is flexible and soft on all accounts.  The sole is plenty flexible and it doesn't feel like you're wearing around a pair of shoes.

Performance and Impressions:
-These things are warm, warm, warm!  Sometimes borderline "too warm" on days that it's not 20 or below.
-They run small.  For comparison, I wear a size 13-14 shoe (a "true" 13 by measurement), a 12 Sorel boot, and I ordered these in 14.  They fit perfectly.
-The sole does not come up along the sides.  This really is my only complaint.  I like that they're "outdoor soles" and I can use them when running outside, but if there's any snow that hasn't been shoveled or compacted, they are going to get your slippers wet.  Being that they're entirely fabric, this could be potentially problematic.

Conclusion:
In all, I couldn't be more happy with these slippers.  They have a very traditional style, they're a quality product, and seem much better built than most any slipper I've seen.  It has been one of the best "personal splurges" that I have ever made and I only regret not purchasing them sooner.  I have a feeling many people will be getting these as Christmas gifts this year from me so they can take part in my joy.  These are worth their weight in gold and, all things considered, provide a great value for the money.