The user interface makes it easy for anyone without technical knowledge or programming skills (even those who are nontechnical) to use efficiently.
They have made their software available as open source so we don't need any licensing costs nor do they collect our personal data which I think this should be more common these days especially when you pay subscription fees per year like me! It helps us keep track of all our work progress across projects by using branches within each project page itself rather than having multiple tabs opened up at once but also allows users outside of my team access too if needed/desired.