There's alot worse out there than Patagonia
Well, 2-3 replacements and 8 months is alot more than the 3 days of leak free use I got out of one pair of waders from another major manufacturer; who rather than admit the material was bad (it leaked and delaminated on the upper half, above the legs only); blamed it on me and said there was mildew (not a speck of it anywhere). So convinced I was that it was a manufacturer defect, I bought yet another brand new pair which - of course - hasn't leaked at all. To be fair, I don't normally send waders in for leaks or after a year - but 3 days? and leaks on the upper portion? delamination? I must admit I kept them for a couple months, but these things were new with tags. I didn't pay that much (on sale clearance)
The offending manufacturer in my case, shall remain nameless - their poor customer service will put them out of business without loyal customers like me.
You can do a whole lot worse than Patagonia, 8 months of use (assuming 150-200 days/year), and/or their 2-3 replacements.
I'm not in the mood for Simms; that material is too stiff and the fit of everything they make is too slim in the leg and seat, as well as in the uppers for layering. Good manufacturer and quality, just that in the case of waders they don't fit me.