I wore the Simms Headwaters Pro's for a couple of years. Two pairs over 5-6 years, granted, I was hard on them. I fish a lot, usually at least 75 days out of the year.
I had one pair that was repaired by Simms, they put new neoprene feet on them because they leaked. Ended up being a warranty claim, and they handled it quickly for me. I was happy with those, and ended up buying another pair after just because they were getting discontinued and I wanted a backup if I ever needed to send one away for repairs.
I beat they crap out of both pairs going all over the northeast fishing. Last year I got a pair of Orvis ultralights, because some of the wear on my one pair of Simms was too far gone to replace and it wasn't worth trying to get Simms to fix it.
Really happy with the ultralights, but the only disappointing thing was that heel on one neoprene feet started to leak right before a trip out west. I sealed the heel up with aqua seal, and good to go. Not sure the exact cause, but seemed like wear and tear on the seam.
I was able to pick up a new set of Simms Guide Classic waders in November for like $200. I couldn't resist the price for Gore-Tex waders. Only real disappointment with those so far is the quality isn't the same as the Headwaters Pro. Some things are nicer, like the stitching for the belt loop, pockets, and straps. But some of the other things like gravel guard hook, and the overall thickness of the neoprene feet weren't the same.
Wear and tear from briars and thorns is a given on some of the streams I fish, so a few pin holes doesn't bother me. What kind of annoyed me was that I had a leak near the front on my right foot, from what I can tell was just the neoprene separating. No abrasion issues, or anything, just felt like a anomaly in the neoprene. I ended up just aquasealing them myself, for $200 I can't complain too much. If it gets worse, I'll send them back to Simms.
Right now between my heavier Simms Guide Classic's and my Orvis ultralights, I feel pretty set on waders for a while.
Point is, if you fish a lot, your waders will wear out. I think Simms used to be better, but I know how hard I am on my gear, and have came to accept that maybe sometimes I am the problem 🤣