I tried my best to break in these boots, but to no avail. I wasted $250 and now the boots just collect dust. If you've had success breaking in rugged boots then you experience might be different. The heel part of the boot is not cushioned at all. It's just hard and thick and ready to rip your heel apart.
I did a 20 mile backpack trip with these and the cloth lace eye popped off half way through the trip. I had done minimal around the house tromping in them to break them in prior - that's it. The eye on my boots was made of fabric (it looks like they have replaced it with a metal on the picture). Couldn't believe they fell apart in the break in period. I'd had them stored in a cool dry area for a while before use - so no return. Very solid in the hand. Very brittle in use.
I'm little skeptical of how long this boot will last. After only 40 miles, the sole is starting to delaminate from the boot and if I try to get the boots decently tight the rings for the laces at the ankle pop out. I'm a sawyer on a hotshot firefighting crew and originally I bought these as a possible replacement to my Lowa's since the Glaciers are "WLF boots." It seems weird they label them WLF then proceed to say they're not meant for frontline firefighting or being exposed to heat. If you have anything to do with wildland fire, I'd recommend avoiding these boots. Pros: The boot is comfortable and it does feel good after long sidehills or steep downhills. I also like the adjustable tongue. I can adjust it to put even pressure on the top of my foot which adds to the comfort level in steep descents. Overall it seems to be a decent boot for the price, just not a boot I'd ever use for work.