I think I’ve mostly found superpowers helpful, especially for TDD. It’s cool from this blog (and their GitHub) that they’ve verified it in various ways too. One issue is that I’ll sometimes see it wanting to write a whole doc for a follow on feature with a similar structure and have to tell it to just use the last one again.
The most annoying thing is that it always pauses before implementing to ask if I want it to use Subagents (which it always recommends) or not.