I can't even tell you how many miles I have put on these boots, I have no idea.  Easily over 1000 miles of solid rucking.  These are the most comfortable and durable boots I've owned.  The only complaint that I have with these boots is that once I got them dirty I've never been able to get them back to looking anything even close to clean.  That's not a big deal to me, these are my go to boots when heading out to the field.  I will definitely be buying another pair once these are done, but it's hard to say when that would be.  In the 8 months that I've had them there is virtually no wear on the sole and all of the seams are intact.

I wore these boots straight out of the box and have never had a blister with them.

I would recommend these boots to anyone shopping for a boot of this style with no reservations.  I would advise anyone looking to pick these up to make sure that you are buying Belleville Sabre (model 333).  There are other models that look similar made by Tactical Research, I know some people who have not had as good of luck with those.