Why would you read the review for book 6 of a 7 book series?
If you’re still reading, and you haven’t already been hooked by this series (I don’t know, maybe you’re really into reading reviews of Aries before committing?) then just know books 1-2 are perfectly irreverent and just silly / untraviolent enough. Then it all gets super deep from 3 on. While still maintaining the irreverence and silliness and untraviolence, and mature content.
Long story short: Seriously good stuff.