[Den-O]

The shows biggest problem is that it never decided what the Go-Busters really were. It couldn't decide if they were spies or not. The spy angle gets used 2 or possibly 3 signifcant times and that's it. The rest of the show they're completely reactive to whatever the bad guys do. The spy angle never comes back into play.

Now mark my words. I went in to this show with incredibly low expectations. Gokaiger set the bar too high for this show to follow up well. And so after 2 or 3 episodes I was already immensely disappointed. Add to this the fact that the first half of the series is incredibly boring and I created a self-fulfilling prophecy that I would hate this show. But that second half pulled a major turn around that's worth watching at least once. I ate my words once this show finally gained steam. I just don't think Toei was ever able to figure out where they wanted to go with the series until really late into it.

I won't defend it as the greatest sentai ever. It will inevitably go down as the worst. But I think the case can be made that there are still plenty of things to enjoy.