Agree. I used to work with ROS during a semester of AI. We had to build a robot that drove itself on top of a roomba vacuum cleaner and used a kinect for vision. I was super familiar with Ubuntu/Debian, but ROS was a mess. The materials we were provided by the course staff was more troubleshooting guides with ROS, than initial setup tutorials. It was a lot of fun, but I couldn’t imagine building something with real-world applications on top of it. Outdated packages. Lots of unpredictable failures. If the original purpose was only prototyping for students, then it works well for that.