They weren't that bad, I mean, they're not as great as some of the earlier stuff, but they were fun to watch. I never felt like the shows were ever trying to go seriously deep or challenge the viewer, but I don't think every show has to do that. The plots aren't anything too deep, everything is fairly straight forward from what I've seen. I find myself loving the designs of the suits, but they often felt like they were too clunky for their own good and hindered the action. Had they been slimmed down just a tad, these things would have been great.
Also, Takeshi Yamada was the writer for the shows, not the director.