So, the belts are great while they last, but the weak point is these buckles.  They use some kind of a pressure-fit nail/rivet to keep the two halves together, and those work out over time.  When they fall out, your pants fall down.

If I could find the part to repair them (which probably costs all of $.02) that would be fine, but having your belt fail during the middle of a work day and having to hold it together with zip-ties is kind of embarrassing.  So, unless you want to carry a backup belt, I'd carry a backup buckle.

Also, if anyone knows where to get these little pins they use to hold the two halves together, I'm all ears.  I have two now that I need to fix.