Anthropic ARR went $1B -> $4B in the first half of this year. They're getting my $200 a month and it's easily the best money I spend. There's definitely something there.
[1] https://metr.org/blog/2025-07-10-early-2025-ai-experienced-o...
[2] https://futurism.com/companies-fixing-ai-replacement-mistake...
So indeed, IF you are in that case: Many years on the same project with multiple years experience then it is not usefull, otherwise it might be. This means it might be usefull for junior and for experienced devs who are switching projects. It is a tool like any other, indeed if you have a workflow that you optimized through years of usage it won't help.
In other words: it might be useful for people who don't understand the generated code well enough to know that it's incorrect or unmaintainable.