Simplicity and extensibility of setup. Every company I've joined, we've switched to using Buildkite in short order. I'll be able to spin up a working setup within a day and prove why it is superior to any alternative. It has also been incredible in cutting edge technologies, to be able to move ahead without waiting for an 'all in' system to catch up, things like iOS and android direct testing. The UI is informative and intuitive with a direct tie-in to the simple yaml construction.

A simple standardised build pipelines across all our codebases, one that everyone on the team understands. Reducing build pipeline complexity has been such a win from a productivity perspective, can't overstate this enough! Not having our code stored on yet another platform! Overall it's brought speed, consistency and reliability to our deploys, and a very very happy team.

* We've got our builds running on a bunch of build agents with a minimum fuss * Very, very configurable * Cheap as * Super swish UI/UX