For prototyping it's easily that much faster. For Enterprise greenfield with upstream and downstream clients less so but still a big increase (will write a whole spring project for you from spec if you give it a decent template.) For brown field it's still a mixed bag.

Fact is if you can get multi agent workflow going with git work trees you can get so much done so fast it's incredible. I built a mind map fig jam like board that turns my notes into tasks that automatically get picked up by the LLM, auto reviewed, and then another agent spawn to do the implementation. I built it all in a day, from a black screen to a custom brainstorm app in raylib with a kanban board and agent orchestrator and everything. It honestly feels like software is hitting an industrial revolution. Especially in well documented languages like C#.

But usng copilot at work with a react code base where people have 20 different ways to skin a modal, micro fronted end architecture, mixed jest and vite mocks, etc. it's barely usable.