I got a pair of their unlined 'shoes' (12-inch high version) this season as I got tired of my thick, hard-soled hiking boots not allowing me to feel the ground. These definitely allow you to feel the ground, and I can also move fairly quietly in them. If you get the right size, they fit like a second pair of skin and are very comfortable walking/standing and also in various temperatures (I've worn them so far with medium weight wool socks in 40-80 degree weather).
However, these are not meant for any type of hilly or mountainous terrain, the bottom tread is simply not made for it; they're best suited for flatter areas.
I do not like the lace up system they use. It's just being stubborn on their part in my opinion to say their boot is unchanged after ~100 years; even the M1911 got some worthwhile updates, heh. These are nice boots, but some improvements over the years exist because... they're improvements. Because of the laces, I find getting the boots on/off the only real annoying part of wearing them as it can take much longer to get these on/off than any other shoes/boots I own. Hook-loops or whatever they're called for the laces rather than eyelets would be an improvement. (And looking at the aforementioned Hoffmans, I see they have this feature and others I would've liked to have seen in these boots... doh.)