I'm a 12.75 heel to toe, B/C heel, nearly D toes, and a 14.5 heel to ball, but still have long toes. I have franken feet, and at some point I should probably have lasts made for me. For now, I do best with mocs made of a stretchy leather.
But I moved north, and my Iron Rangers and Merchants just aren't comfortable enough for how often I wear boots. I have a lot of trouble with boots, my feet are weird. And I needed something warmer as well, if I want to spend time outside year round. This fits the bill for the latter need.
I normally buy 13B rangers and pennies, so my heel fits, and the leather stretches in the toe box to fit my normal width toes. This helps my foot stay in place, and also molds to my forward instep that is so problematic in sturdier boots. Because of the shearling, that doesn't really matter, and these are going to be more sneaker like. The 13 is a bit too wide, and a bit too long, but the 12 won't solve width because it's going to be more uneven in length vs width. Right now I'm going to have to wear this with heavy full cushion socks, or medium full cushion with liners at a minimum. I don't foresee that being a problem, it's going to be cold, and I don't have great circulation
It's a nice high boot, giving you extra ankle support should you slip. The downside is, out of the box they're a bit awkward to sit in. A bar stool is fine, and they'll probably break-in in this regard with time. Hopefully not too much, or you'll lose some of that…