I tried Fragmentarium last year. Steep learning curve. I intent to learn to use it in the future (same goes for MB3D and Mandelbulber), but at the moment I am having fun with easier programs. I have tried 50 different programs so far and I still have many more in my hard disk drive.
I only made four fractals with Fragmentarium. None of them are good: https://www.deviantart.com/jlfractals/gallery/70555163/fragmentarium
Thanks for your reply. =)