Once Google entered in this market, Sketchup had to cope with giants like 3DMax, Cobalt, Realsoft3D, SolidWorks, etc.
Using Sketchup is like playing with 3D modeling. Being a Google product, Sketchup comes fully integrated into Google Earth and brings in front most of the CAD technology to a user-friendly level. In case you want to sketch your new home as a casual user or you are a CAD engineer and you need a tool that brings a better environmental integration to your models, Google SketchUp can be one of your best solutions.