I use Visual Paradigm to create models for business planning. I love it because it’s so intuitive and feature-rich! The learning curve is short. In particular, I love that I can share my BPDs to clients for collaborative feedback directly on the diagrams rather than having any email conversation. I also found the report editing support amazingly powerful because it allows me to construct my own business plans and proposals through an intuitive drag-and-drop report editor and export them to various document formats. I can even customize the content template for reusability. Great work!