I like super powers because I can be more in the loop editing and understanding the plan. Letting fable loose is genuinely impressive, and probably perfect for vibe coding, but I can’t be that far away from the plan and steps for code that matters.

As for being great for vibe coding, it’s cool but I can’t justify that kind of cost for throwaway code. At this point I’ve had good experiences using fable to review code, but I’m totally content with opus for all of my workflows still. If fable was the same price I’d switch (for projects not involving biology, at least), but I’d still use something like super powers to stay in the loop.