I work in a rock quarry. The environment is complete dust and stone debris all over the ground. It also gets to be over 100 degrees in the summer. Based on this, I feel this is an excellent "torture" test for the quality of these shoes.
 I have had these shoes for 5 months now (through the whole summer) and am very pleased. They do indeed breathe very well as my feet didn't get all hot and nasty like they would in typical boots. I didn't have much of an issue with dust getting into the shoe either. Some dust would get in but it was very minimal. As far as durability goes, so far so good. I noticed a small tear on the top stitching but other than that the rubber is intact and does an excellent job of protecting my feet when I step on jagged rocks. I also wear these for general hiking. Very satisfied overall.