Love these leggings. Wore them four days straight, including once overnight, to test out the smell factor. Only by day four was I able to detect a hint of odor, and I wore these while hiking, working outside, and for walks around the neighborhood.
In comparison to Athleta's Salutation Stash legging, these definitely have them beat. Wool& has significantly better feeling fabric, they've kept me warmer on a cooler day despite feeling less thick than the Athleta leggings, and cooler when it's warm out, making it foreseeable to wear them through the summer. My Salutation leggings also pilled like crazy on the inner thighs, and so far, the Wool& leggings show zero signs of pills after having worn them about 10 days total so far.
I haven't experienced the sheerness issue on the knees and butt that others have noted, so I'm curious to see how they'll hold up over more time.