I'm honestly surprised at all the people here commenting that superpowers didn't work out for them.

For me personally, it was a game changer when I first began using it and now it simply is as much a part of my workflow as any say, using git (yeah it has its warts but way way more value).

Also, the latest (version 6) is noticebly token efficient as claimed.

Did the people who found it underwhelming not try starting with the brainstorming skill first?

I feel the same way. I've used superpowers since I found it during the initial Ralph hysteria and love it. Every task I do starts with brainstorming and it always produces great results, even coordinating across multiple repos. Having the plan to read and comment on ahead of time is great, although admittedly maybe that is built in to the major harnesses now and I just don't know about it. Always feel uneasy kicking off a task without having used superpowers.

Same here, the brainstorming and research phases are good and the spec part at well, I do side adversarial reviews all the time with other independent agents and feed sp the reviews and they are tools to avoid gliding over the surface. The dev process is longer but the result when done in a sound architecture with documented practices is quite good even though it’s slow. Very happy with the tool so far