I have shown a few of my friends in the local model engineering club what can be done very quickly in 3D CAD and they are all totally amazed.
I used Autocad 2D for a lot of years before we transferred to Solidworks 3D at work in 2005, every now and then I have to make change on an old Autocad drawing and it beggars belief how we ever managed to produce anything with it.
Another 100% thumbs up for 3D from me.
Phil