I've started using two of the Red River paper stocks. I'm using rolls of Palo Dura Smooth Rag (matte) and Palo Dura Softgloss (pk). They both tick the archival boxes I look for, no optical brighteners, cotton rag.
My color munki photo bit the dust a while back and I haven't replaced it so I'm using their canned profiles, but I have to say they're really spot on. I'm not sure if it's the paper or the profile or my experience level at this point, but aside from my other issue with my P6000 (still annoying but can work around), the prints are great!
I was kind of expecting them to be a bit cheaper than they are since I guess you could consider them an 'off brand', but they're about as expensive as the popular stocks from Canson.
Their branding and website probably hold them back from the fine art world, it's all very consumer/trade focused. But I can say the product is great. Hopefully people don't stick their noses up too much...I know photographers often are VERY brand focused lol.
Anyway, just popping in to say I recommend these particular stocks. We are bursting with paper choices these days and it's pretty wonderful.
