As far as I can tell, Japanese fandom tends to consider Goggle V the franchise's least memorable series. And that makes sense, given what I've seen of Goggle V. Sandwiched between classic Sun Vulcan and harbinger of things to come Dynaman, Goggle V has a weird, awkward aesthetic. It isn't good in the ways Sun Vulcan and earlier seasons were, and also isn't really good in the way Dynaman and later seasons were. It's just kinda there, a weird missing link between the 70s and 80s Sentai aesthetic.