In reply to Timhlondon:
I got some Unparallel UP Lace in 2019 and they're still going strong, despite having been demoted to indoor leading shoe. I don't particularly love them, and the liner fabric has wrinkled, but the rubber seems fine. I always thought it a sturdy, well-made shoe, especially compared to sloppily made Anasazis from the same period. Perhaps standards have slipped?
In (older model) Katanas, by contrast, I always seem to split the rand near the big toe where it gets a little wrinkle when I really edge on something. Same weird split in two pairs, and did it to an almost new pair trying hard on a limestone sport route. I think it must be the exact way they fit me that does it. Shame, because, once they've been laboriously broken in, I love climbing in them. My main pair of trad shoes is consequently holey, and has been for about a year.
I also love the Tenaya Oasi... but after almost a year of bouldering in them inside and out, the rubber is getting so thin toward the front that I know they will go before long. I think that's just an inevitability, though, of them being so incredibly sensitive.