It's been 20+ years for me. But my random thoughts:
It's hike-in only.
It's thought to be the last true, healthy run of true natives in Oregon.
The entire river is pretty much one continuous waterfall -- I think it drops about 100' feet per mile.
It's natives only -- if you go, fish barbless.
It's unbelievably difficult to fish. Mostly canyons.
When I've went, we saw massive fish in every pool. And the second you try to get to the pool, they're gone.
The hiking is much better than the fishing.
You can fish for the same fish in the mainstem Nehalem below Salmonberry, and access is much better, and it doesn't get crowded (and it doesn't get any hatchery fish, so again, fish barbless).
I'm not sure if they ever rebuilt the bridge over the Salmonberry.