I have to disagree on that CA.

BUT... it's all I've used for 3d printing so far. I know it's not the best for it, but I do ok with it. I've had to learn how to make it work for printing. Maybe when I move onto another program I'll realize what you mean, but I see nothing "wrong" with it, 3d printing just isn't it's forte. I can whip up something really quickly in SU, convert it and print quickly now. Just gotta think like a 3d printer from the get go. Converting old designs to be printed..... that's another story.