Comment by AlexeyBelov

I can confirm it's an enhancement in writing code specifically. We've been actively using CC in our company for more than 6 months already.

Notably, the product itself isn't really better for users. And almost everything else apart coding now takes the bigger percentage of time. So as devs we could either just fuck around and refactor endlessly, or chill out and "complete the sprint in 30% of time". It was known for a long time that churning out code is not the bottleneck.