I have. I use it for all of my home projects
Kanban, Gantt charts, milestones, idea collections, file uploading, retrospectives, time tracking, documentation, etc.. all supported with the selfhosted version.
These are the "premium" features:
- Custom fields
- Pomodoro timer
- Whiteboard
- Program plans (I really don't understand what is different about this than goals + milestones + documentation + tasks)
- Strategies (pretty much just collecting and categorizing goals it seems)
https://i.imgur.com/T6bSIhK.png
I hope they don't remove features and make people pay for them. It has plenty of features to make it useful now, but if they start removing them, then I think i will have to find another solution.