My Father's Long, Long Legs is essentially a publishable short story, as good as Stephen King or Dean Koontz.
This doesn't mean that the Twine format feels too confining. The story branches and recombines at various points, and the illusion of choice increases the feeling of powerlessness.
Also, some of the more advanced techniques of Twine are used in the last scene to improve play experience.
I recommend it strongly to subtle horror fans.