I've only just discovered Blender and after a few hours I can do far more of my simple project than I managed with FreeCAD after hours of struggle.
However I have found the scaling and units a bit confusing and read that Sensei deals with this more simply. I downloaded the zip file and tried running it from the Linux terminal and in the Blender Python console but it errors.
Blender 2.76 on Linux Mint Cinnamon 18.1