I wanted to like these boots. They look good, are well made and don't appear to be too bulky. Despite the large toe box (as advertised) they seem to fit small. I have wide feet and a high arch and I normally wear and 11. They hurt putting on. The rubber boot upper cut into the top of my foot and there was pressure on the sides of my foot. I had to max out the buckle just to close it. I tried to walk around for a couple of hours in the house, but found my foot went numb in them and when I took them off my foot tingled like it was asleep. I couldn't see myself wearing them 8-12hrs per day for two weeks. No-one seems to have a size12 in stock in Canada so back they went. I am also concerned the 12 would be huge and make shifting difficult. Thanks to DSP and their return policy.
If the boot shape design is compatible with your foot I am sure they would be fine but if not they will hurt as there is little 'give' for the boot to mold to your foot.