So my new pair of mountain extremes finally got broke in this summer and once they did I started getting a lot of heel slip. It was to the point of causing a blister.I emailed kenetrek to see if there was anything that could be done. They called me on the phone(amazing)and proceeded to tell me that if I mailed them in the would "rebuild" the boots to solve the problem.3 weeks later they are back at my house after extra material was sewn in the heels They also replaced the Rubber "rand" that wraps around the boot because they were not happy with the way it was wearing.
Now I am sure that in true internet fashion someone will say "if you would have bought X boot none of this would be necessary but I just wanted to say here that it was refreshing to deal with a company that stands behind their product. Customer service appears to be alive and well at Kenetrek.Ill stick with them simply because of it.