Perhaps you could be more specific on what you are trying to do with the software. I have been playing with it for a few weeks and am getting somewhat tuned in to the software. If you want to create complex organic looking shapes, create them with the loft (connects free form curves with skin) and sweep (extrudes a profile created using a free form curve) functions and then adjust the points till you are happy. The key is to place free form curves in a line and connect them together or sweep them along a path. Everything else is transforming and adjusting points. Attached is a really quick start on a space ship that I am modeling.