Unfortunately, I haven't made anything with it myself, but as far as I know it's just a tool that let's you create simple puzzles based on sokoban mechanic. A lot of games in confounding calendar uses it, it's easily recognisable. The best game made with it that I know of is reliquia park (I really recommend it, it's a free, big game with rule discovery and it doesn't rely heavily on sokoban mechanic, it's not the essence of the puzzle, it's only there to place right objects in right places), although it wasn't made in pure puzzlescript, but with some plugins, but Im not familiar with that topic.
Also I commented on some of your puzzles on bgg and will comment some more sice I haven't finished yet.
Sorry for long message