It's rather like having a design intern. It might be in "a good mood" and produce something interesting, or it might be having "a bad day" and you waste 12+ credits. (And of course if you like something, it costs more credits to upscale or prepare it for actual production use.)
I'll keep it for the idea generations it can provide. But I'll not be building it into my core workflows, because it's not consistent. And yes, the idea of "consistency" with creativity is inherently unfair. But a real intern won't tell you: "sorry you don't like what I did, but you ran out of credits, so I won't be coming back to the office for 20 more days."