It is obvious that this whole season was just filler in the leadup to the Gokaiger adaptation, but still. It deserves to be reviewed.
Let's start off with the acting. It is absolutely offensively bad. I would be embarrassed if I were auditioning for this season and lost to the cast that they hired. Seriously, the Red Ranger may as well have been played by a robot. No one on the cast knows how to act. You get little to no emotion out of the majority of the rangers. And it seems as if they're keeping this cast for their Gokaiger adaptation, Super Megaforce! FFS!
The writing was awful, too. Compared to RPM, which had characters with enriching, intriguing backstories - This is a joke. The Pink Ranger was the closest we got to a deep character, and that's saying something.
The overall story arc was weak. I could have thought up a way better arc. And I'm sure you reading this could have, too. The story arc Saban chose was predictable, weak and boring. It never bothered to try something new.
All that this season got right was the setting and special effects. The places where the Rangers went looked great in HD. And the effects looked good for a children's show.
Because of the aforementioned reasons, I am giving the overall season 3 out of 10.