WeTransfer's Lead iOS Engineer Antoine van der Lee shares his experience of choosing the right CI system for their company, after initially using Travis and Jenkins with mixed results. They eventually switched to Bitrise, which filled their needs by providing a user-friendly interface, easy workflows, and support for new Xcode betas within 48 hours. The team was able to set up a similar setup in less than a day of work, matching their existing Jenkins implementation and daily builds. Antoine highlights the importance of "First, make it work, then make it shine" and provides tips on how they moved fast with Bitrise, including disabling test runs initially, using environment variables, and triggering rebuilds manually.