As a long time viewer of Power Rangers (every season thus far) this season has a lot of heart. The role models on the team are particularly well-done. The stories communicate virtues to children in a way that appealed to and are understood by our 4.5 year old boy.
I have seen the Super Sentai shows that Power Rangers is based on and I think that for the American audience, Saban knocks this out of the park. Super Sentai shows are fueled by merchandising but also emphasize, hardwork, perseverance, sacrifice, teamwork, and the good guys always win.