I had impacts for a year. Less than a year. Much like the old 5.10 rock boots, they grip better than anything else, but fall apart sooner as well.
They almost never fully dried out between rides, and eventually fell apart probably because of that. Picked up a 2nd hand pair of sombrio now, lucky me, they are much more waterproof. Not quite got as much grip but I don’t need it – with good pedals + 5.10s you sometimes stick so well you can’t adjust your feet if you place them wrong! A nice problem to have for sure, but an unnecessary one.
Maybe the more waterproof 5.10s like freeriders will be better but I wouldn’t hold my breath on durability. Actually what’s the world record for breath holding? You might outlive the shoes…
Shimano AM41s always got good reviews as well, though I’ve never owned any. Far less padded – depends what you want more of, padding or waterproofing, they don’t tend to play well together as padding is fundamentally a big sponge.