100% of the team (14 engineers) is using Claude Code for everything. Anecdotally it feels like velocity is 10%-20% faster. Objectively I have no idea if velocity is faster – because management is inept and does not actually track this. The most noticeable thing is test coverage has greatly improved. Every PR ships with lots of tests, whereas before we used AI we had little to no test coverage since it was just too time consuming.