I also find it faster to use. I tell the agent the problem, ask them to write a set of tasks using beads, it creates the tasks and it creates the “depends on” tree structure. Then I tell it to work on one task at a time and require my review before continuing.
The added benefit is the agent doesn’t need to hold so much context in order to work on the tasks. I can start a new session and tell it to continue the tasks.
Most of this can work without beads but it’s so easy to use it’s the only spec tool I’ve found that has stuck.