This software is as much a power-user toolkit as it is an end-user application. It can be very simple and elegant to use as an outliner and mind mapper. But it is also suited for highly complex tasks. It has many unique and obscure features that delight faithful power users populating the developer's "geeky" discussion forums. Though responses are prompt and helpful, non-programmers may feel intimidated about asking "obvious" questions. Unfortunately, despite the software's appeal, as of v. 4.5.3 and v. 4.6.1 it still is not universal binary, resulting occasionally in strange glitches running under Rosetta on a late-model Intel MacBook Pro. Even more unfortunate, Tinderbox does not fully support Unicode, which means it's virtually useless for working with Chinese, Japanese, Hebrew and dozens of other languages.