Interestingly, I had tried on a slightly different version of the boots a few years back in a Bean store and found that they ran small, but the reviews of this version indicated that they ran true to size or perhaps even a little large, so I ordered 10.5, which is down half a size from what I normally wear in athletic shoes. I may have been able to get away with size 10, but I still prefer having room up front.
The extra space would also be useful for insoles, but so far I haven't felt like I need them in these boots. The cushioning in the insoles is quite good and they have been comfortable to walk in. I imagine the rubber soles and the inner layer of cork contribute to that comfort as well.
The uppers are oiled leather and they have picked up a few stray marks so far, but in some cases those can be "erased" by rubbing the area around the mark to redistribute the oils. I do wish there were speed hooks at the top instead of eyelets all the way up (I believe the version of this boot that J. Crew is selling has speed hooks), but I think I could have them added by a cobbler and I may do so.