We can see all the pipelines with a simple search. The UI is colorful. The user experience is very rich. The product is very easy to learn if we know a bit of the basics. If we have someone to show us how to use it, it is very easy.

The most notable aspect is its user interface, which we find to be user-friendly and straightforward for deploying and comprehending pipelines. We have the ability to create multiple pipelines, and in addition to that, the resource consumption is impressive. 

In GoCD, you can effectively track sources and pipelines. The platform features pipeline groups that enable role differentiation, specifying who can perform which actions. Additionally, GoCD offers a valuable feature called the value stream map, which holds significant importance. The value stream map shows the complete flow of the pipeline itself, showcasing the input-output journey.

GoCD integrates seamlessly with various teams. For instance, it allows setting up top-level management access with read-only rights to monitor product deliveries, deployments, and the overall delivery process. Different teams, such as developers, QA, and testing teams, play crucial roles throughout these processes. With GoCD, you can easily track the success or failure of pipelines within different pipeline groups. This setup ensures that the QA team controls its pipelines and can modify them as necessary. In contrast, the development team cannot alter QA pipelines, maintaining segregation of responsibilities.

What sets GoCD apart is its transparency. Everything from pipeline status to progress is readily visible and accessible to all relevant parties, including management. This level of transparency eliminates the need for constant inquiries and allows stakeholders to access and understand the status of projects in real time. This transparency and accessibility are key attributes that make GoCD a precious and efficient project management and delivery tool.

1. It has a user-friendly interface, which for free and open-source tools, the UI is really amazing and simple. It takes a few minutes to show the CD process to new users and onboard them.
2. Permission separations mean that we can grant limited permissions for each team or team member.
3. Integration with LDAP allows us to use central user management and leverage permission separation inside GoC.
4. Plug-in architecture gives us the ability to easily extend GoCD, although it is not always possible because of the limited number of plugins.
5. As an open-source solution, we always can check the issues, or rely on community support.

The Pipeline concept, Fan-in Fan-out, and Compare build are the most valuable to me.

Hackability, visual representation of build pipelines, open source Apache License 2.0