Hello All - I currently run a 4 seat design build office running Archicad 18. While I love Archicad, I am not the loving the investment. I am becoming more and more intrigued with SketchUp and believe I will love it even more than Archicad. There are so many resources out there for SketchUp, it is a bit overwhelming. Can you point me in the right direction to start my research for making this transition? Should I jump right into 16 or start with 15? Can you offer any pitfalls to avoid? Extensions to consider? I really appreciate your input!