I used the sizing app and ordered a pair. Too small. I suspected they would be but thought I'd accept apps opinion. I have a pair of custom South 40 boots, but they are built on a different last. The app came up with a size 1.5 sizes smaller than my normal, store bought shoe size.
No matter, sent back, sized up .5 and after a very short break in period, they fit like gloves.
The workmanship is outstanding. The seams are straight, clean and true. The walnut timberjack is fine leather, uniform and without marks.
They are expensive footwear, that is worth the price. I wear them every day and I suspect they will out last me.