Gret tokusatsu masterpiece series from the golden years of the genre: Ultraman meets Super Robots! (In perfect Mazinger Z style!) Great cast, fantastic adventures, funny old school & low budget special effects, and a tasty cherry on the pie: Inspector Ippei Kumano, played by Isao Tamagawa, the best comedian hero ever!
Sure, to really appreciate this show you need to be an enthusiast, with a realistic "archeological" point of view about this kind of old japanese live series. Otherwise, is better to search somewhere else.