There's a fair bit in terms of work-flow that I learnt and that I think I will remember. There's more in terms of tricks that I might use occasionally that I know I won't remember, but I will remember where to look them up when I need them. The image over to the right is one I made, using the instructions, in about an hour. It would have been faster, but in a couple of places I struggled until I went back and read the instructions very, very carefully, but for 3D modelling that's hardly a crime - could you make something like this in Second Life in an hour of first building?