I like that you are able to creat custom items and determine which ones will work best for your. You can see it without having to take hours or days to create on a piece of paper. It lets you save your work and compare what will work best for you. You can view it in depth with the right measurements before you continue your project and see how it will work in a 3d dimension. Pretty awesome software. It has helped me a lot and I hope it will help you as well.

Sometimes rather than trying to work things out in the field, it is easier to problem solve on the computer and detect any clashes using software like SketchList 3D

I have used most major CAD packages over my 30 year career, and Sketchlist is certainly my favorite. What sets it apart is that you are not drawing a completed 2D object then extruding it into 3D, but rather starting with a board and cutting, shaping and milling details into it in the same way you would work the board in your woodshop. The 3D renderings are excellent as selling tools to explain designs to clients. I have used it to sell woodworking articles to national magazines more than once. And you get material cut lists and cut layouts automatically from the software, speeding estimating and ordering. You can even export .dxf files to your CAM software and run them on the CNC. No other software package in this price range has all of these features.