Rating: 3 / 5
I'd give these socks a 2.5 or 3 at best.
The concept sounds great. The execution just doesn't live up to the marketing hype and expectations.
Unlike the Review Thread Initator, I don't find these socks thick. In fact, and perhaps b/c they've had a lot of use, they are significantly thinner than a Smartwool liner+Smartwool hiker combo - much, much thinner (at this point in time in the socks "life"). However, even starting out, they were significantly thinner than the above mentioned "combo" of Smartwool socks.
When brand spankin' new, these socks had a tad (just a tad, mind you) more "loft" (if i can use that word with wool socks). The fact that they may have lost some "loft" or cushioning (there, perhaps that's a better term to use) is probably due to the smaller pct. of real wool in the sock. PD merino socks & Smartwool hikers definitely don't lose as much cushioning with use.
To me they do feel more like wool than a synth. sock, but, having said that, they sure don't feel either like PD merino socks, or Smartwool merino hikers.
They are more robust than PD socks, but don't seem to be as robust (i.e., long wearing) as Smartwool hikers. While certainly NOT wearing out despite the use i give them, they show more wear (no thin/thinning spots though) than Smartwool hikers that have several times the miles on them.
Speaking of use, i really don't use them trekking. I just don't think that they are up to what i need in a sock when i need more than one or two pair of liners. That is, i'd prefer to wear Smartwool liners+Smartwool hikers instead of these socks. Hence, these socks are relegated to daily wear which involves walking to & from my car at work (~1mile r/t involving a, maybe 15deg, hill) & walking around the factory (1-2mi per day, depending) + a 1mile walk at lunchtime.
Just in the interest of "science" (conducting an "uncontrolled" stink test), i have worn them more than one day in a row w/o laundering. Didn't really stink after several days of wearing (as i might do when on the trail).
However, they have had a lot of laundering & perhaps this accounts for their appearance at this point in time. However, i generally only use the "Delicates" cycle of my washing machine for washing most things (unless very heavily soiled) due to the agitator.
I wouldn't buy another pair, unless i desperately needed socks and other merino wool socks weren't available.