Personaly I never liked a subscription software, where you have to pay every year for the privilege of using it and a new update or two..
I use Rhino 4 for CAD, it is a 3D package, buy it once and its yours... educational it was about 150 dollars, full price was at the time about 800 dollars. Rhino was relatively easy to learn as well.
I use Sprutcam 7, it was hard ( for me) to learn but after learning it, it works well and is a 3D cam package.
This is what I have used since 2/1/2012 and am very happy with it.