>In my experience, this tends to result in tests that take a bit longer to run and, due to their lower level of granularity, require slightly longer to understa

>In my experience, this tends to result in tests that take a bit longer to run and, due to their lower level of granularity, require slightly longer to understand failures. In return, they provide significantly higher prod-representativeness and business-value-delivered-per-hour-spent-test-writing. You are describing E2E tests here though. And this is the general problem with even discussing these things. It seems that literally everyone has a different mental model of the boundaries between each.