Failures are boring, now observe regressions and fixes, see behavior of test cases over time on charts. Look at changes, compare with previous results. Unstable tests are automatically identified and marked.
Performance testing, obviously. Now with support for multiple iterations, statistic analysis (avg, median, stdev, cv and more). And with automatic regression detection.
Common way of executing jobs is doing this directly in local system. Beside that Kraken allows for execution in containers (Docker or LXD) or in virtual machines (AWS EC2).
Reduced risk of regressions. Developers can test their code with the same tests that are used for product validation. No need for expensive individual bench test environments.