Overall great shoe. Ive run these in all sorts of conditions across Colorado. The sole is very grippy and  works well in mud, loose gravel, and snowy conditions. Lugs are reasonably durable for the excellent grip they provide, but still I have chunks ripping off after just 100 miles. They would probably last longer if you don't run much on dry, rocky trails. Id recommend a different shoe for those conditions and reserve these for snow and mud, which is where they really shine anyway.

Keep in mind these may run small for you. I have an average-to-wide foot and wear 11.5 comfortably in most shoes, including Brooks,  Merrell, Scarpa, and dress shoes. 11.5 was too narrow so I had to size up to 12.0, leaving more length to slide around and jam toes on steep descents.