[gracenotes]

As several other commenters have pointed out, code reviews are not a silver bullet. It is widely known that there is no silver bullet.

That said, if your goal is to make a quality product, you shouldn't have to choose between code reviews and continuous integration. You shouldn't have to choose between code reviews and code coverage, or manual QA processes. These are all widely regarded as best practices and if implemented "correctly" and appropriately to the team their combination forms a virtuous cycle for code health and team culture.