I have 30+ years of CAD experience and have completed 100's of projects successfully. All projects were based in US, UK and in India. Usually I use AutoCAD for all my 2D drafting work and for 3D I use AutoCAD, Inventor and Solidworks.
One of my long lasting projects was for Barges drawing, (mechanical dwgs), a US based company. Another projects was for UK Pub Houses which were to be digitised with all new security details, the project consisting of about 5000+ Pubs was completed within a year by me and my team. (I was the Project Manager)