When I started watching this series, I was aware of how most people consider it "the worst Precure series ever". However, I didn't feel it that way. I enjoyed the series from start to finish. The characters are loveable, the story advances in a quick pace and even though there are some flaws, I can let them slide.
The story focuses on two opposite human emotions: selfishness and love. If the villains try to take over the world by manipulating people's selfishness, then the Precure counter it with love. As the series goes on, we see that almost everyone has a bit of selfishness in their hearts, including the Precures, but they can overcome it by love.
This is a series with a meaningful message and it is my second favourite Precure series after Fresh.