I've had the Simms Rivershed waders for 4 years now. At the time I bought them they were Simms' "middle of the pack" model, which I believe has since been replaced with what they call the Headwaters. They are the bottom line Gore Tex waders that Simms makes, and when I say "bottom line," I assure you that they are still top of the line waders.

As stated before, I have had these for 4 years. I have definitely put a fair share of pine hole leaks in them, and then last summer a nice 2" gash from sliding down a granite slab in Cheesman Canyon. Patch kit is super easy to use, and the Aquaseal is a fine product for the pinholes.

What I'm getting at is that Simms makes awesome waders. However I don't see the need to get the $600 G4s and G3s, their middle of the pack line is awesome just as well. They don't break the bank either at under $300 for those Headwaters, and the Gore tex makes all the difference.