This did seem like a step backward  coming out less than a year after The Time Machine which is one of my
all time favorites.  Yet somehow it kind of worked at the time since the theaters were full of Hercules-type
European films which had some pretty  spotty special effects.
I really did like Joyce Taylor after she had  been on  Men Into Space which was one of my favorite  TV shows.
I also liked Russ Garcia's  music.  I wish he had done more science fiction scores.