You can watch it at Internet Archive, and Googlevideo also has it online:
TCM has an overview. Beckoning Chasm has a scene-by-scene description, including some verbatim dialog. SciFi.com has a review that says that
fans looking for a campy and comparatively compelling cinematic experience should find it amusing and appealing.
I did not find it campy, just boring, and I disagree with the suggestion that it could be considered "compelling" in comparison to anything.