Some of the strengths are already identified on the home page. Additional strengths:
Open Competencies is grade-agnostic.
Most standards bodies are based on grades, ie 1st grade students will, 2nd grade students will...
This leads to much repetition, with simple details added each year.
Open Competencies focuses on a clear deconstruction of skills and knowledge, without any reference to when these targets should be met. This should result in a clean basis for a true competency-based system.
Some of the strengths are already identified on the home page. Additional strengths: