Yes Steve,
I have worked very briefly with Form Z. I have been on Macs, pretty much, since 1986 when I started with Illustrator. The constant problem is 1. Getting up to speed with a program. 2. Affording a computer that will handle 3D quickly? 3. Finding enough clients to pay you so you can afford it. 4. Keeping up with all the upgrades without diminishing profits.
In the earlier days Adobe had a lot of competition, but over the years they consumed most of the competitors. I have had to switch to Affinity. I am hoping Trimbel does not do that with Sketchup? In the earlier days when it was still @last software, I trained the Disney Sign shop people on it (local Adult Education School) after promoting it to them as Adobe Illustrator on steroids. Thanks for the heads up on Form Z, I have been working with Blender some as of lately. I will look into Form Z.