I use MindManager for many applications. The most interesting is failure mode and effects analysis for products, systems and processes. With the correctly built map parts for failure mode and solution generation, you can quickly document a process and objectively assess risk and subsequently implement error proofing solutions. I have the Map2Excel add in to place my map into excel at the end.
I also have my to do list complied into MindManager using the Getting Things Done (David Allen) architecture. It is a nice one page visual of what I need to do categorized by context. Tasks can easily be moved from one contect to another which is a huge benefit.
MindManager is also useful for creating intuitive visuals for training and communication purposes. Maps in general are more interesting and pleasing to look at and I use them frequently.
Once you learn how to use the program (which can be a little intimidating), you will be plesantly surprised with the capabilities.