SyntaxBomb - Indie Coders

As I'm working my way through AGK stress testing & docs, I've also come across some GameGuru videos creating pretty impressive 3d environments with lush vegetation. E.g: https://www.youtube.com/watch?v=CARHQM-LQzU

I can imagine this has fairly limited uses and in a very specific limiting framework.
But I've also seen that a GameGuru environment loader for AGK exists. I wonder if for this the same applies.

Otherwise, if useable in AGK, the tools in GameGuru could perhaps drastically reduce and simplify game level development? Apparently GG is dead cheap, only  10 euros now(https://www.game-guru.com/) but the loader oddly enough isn't (https://www.appgamekit.com/dlc/gameguru-loader) 27.99 euros, which makes me kinda reluctant. I'd rather try a demo first, but non available.

Anybody tried this already and wants to share their experiences regarding frames per second, interface, flexibility etc?