Empirically yes. Putting aside AI code review for a second, just AI IDE adoption increases rate of new PRs being merged by 40-80%. This is at larger, more sophisticated software teams that are ostensibly at least maintaining code quality.
What do you think is the mechanism driving this improvement PR merge rate?
Based on my experience it's like having an good quality answer to a question, tailored to your codebase with commentary, and provided instantly. Similar to what we wanted from an old google/stack overflow search but never quite achieved.