How bad is it? There's no nymphoid barbarian and no dinosaur, for one thing. Not good.
Should you see it? If you can find the DVD with the director's commentary.
I've watched more than a hundred cavewoman movies (really!) so a title like this was like catnip to me. The story takes place on another planet, so there's monsters that are more mutant than dinosaur. The lead actress is not "nymphoid" and plays things fairly seriously; she's among barbarians, though she isn't one. That title is the cause of most of the hatred for this film - it's just a middling fantasy story done on the cheap. You can see matte paintings in the background and the director uses double exposures and stop-motion animation, so this is very much a 1930's film made half a century later (including a budget not adjusted for inflation). The DVD has the director's commentary, which is far more interesting than the film itself, detailing the difficulty of making cheap flicks.