Travis CI is an okay tool, and I am forced to use it as part of my job. I don't maintain it; it is running somewhere else, and I don't have control over it. The interface is very basic and not user-friendly; it feels like it was stuck in 2010. It is very basic and designed for lightweight CI work, and it cannot handle heavy CI. You cannot do branched flows, and you will have to write shell scripts to send calls here and there. The pipelines are not as detailed as some other CI/CD tools. If Travis is down, you don't have any control over it and need to reach out to their customer support.