In my opinion, unclear, incomplete, and incorrect documentation is not as bad as the many bugs and glitches in the application. One of the reasons I chose TurboCAD over competing software (besides a lack of competing software at an affordable price for Mac) is the intuitive interface. This combined with the broad toolset had me able to start modeling complex objects with a relatively short learning curve. Actually getting the objects drawn, well, that's another issue. I've only had to refer to documentation when tools weren't working as expected and I needed to understand what I was doing wrong (or learn a tool's terminology). At that point at least one failure has already occurred, and having unhelpful documentation just increases user frustration. (Fortunately I use TurboCAD only as a hobbyist and do not have the added frustration of needing to meet a deadline.) If the application worked reliably then honestly I would never have known how lacking the documentation is.