For me it's the opposite: I don't have $200 plus to throw at Anthropic every Month, and when I do get to use Fable it rips through my usage credits like there's absolutely no tomorrow.

Of course, the hilarious thing to me is that Anthropic likes to claim that the usage limits are because of resource allocation problems or something like that. Obviously no such issue exists, otherwise they wouldn't allow you to bypass it by just paying a bit more and it would be a hard limit. So usage credits are entirely their way of just screwing you out of more money.

I suspect it must depend on how one manages their codebase - wrt to docs, ADRs, and general guardrails.

For me it is not great for design work - Fable is way better, and 4.8 was conservative and thus better (Opus 5 seems to jump to conclusions far more eagerly). But for overnight builds, where I give it 8hrs worth of work on LLDs created by Fable - its great. Where Opus 4.8 would often lose the plot and stop for questions clearly answered in the LLD - Opus 5 does manage to complete. Since it launched, I don't remember it ever disappointing me with builds. But designs? Boy, is this thing explosively stupid sometimes.

Opus 5 loves to stop working "for safety reasons" and shuts down the session! I avoid it at all costs now. Opus 4.8 has been my default as well.