In terms of plot, themes, character personalities/depictions, and suitability for children, I found this particular series unnecessarily, exceedingly and graphically violent, dark and gruesome. I think the age rating of TV-PG and TV-Y7 need to be reviewed and increased to TV-14.
I like Looney Tunes characters, but this series is quite disturbing. I know in the original, there has always been an undertone of painful consequences, but its usually for the characters cast as troublemakers. This series has way too much violence for all characters, whether troublemakers or not, with scenes that have some of the troublemakers (e.g. Daffy Duck) getting away with his violent (mostly insane) actions. It's all probably meant to come off as funny or pranks, but I don't think it does.
As a parent, I found this series extremely disturbing on different levels. The graphic depiction of violence is so detailed, gruesome, frightening and in-your-face. There's a scene where Elmer Fudd is made into a literal sandwich, and it shows the process (plucking, rolling, basting, roasting, frying, etc; at some point a bone in his leg is jutting out), then Bugs takes a bite out the Elmer-sandwich. There are scenes with body parts being violently turn/cut off. I applaud the removal of guns from the show, but replacing guns with similarly dangerous objects like knives, sickles and forks, and showing characters deliberately (and gleefully) chasing or jabbing other characters with these dangerous sharp life-threatening objects with the clear intent to inflict bodily harm is counter-productive to the message of anti-violence we are trying to instill in children of all ages.
The series has some of its characters constantly displaying a lot of anger and aggression, with no balancing or counter elements to show proper ways to deal with frustrating situations. Basically, this series is NOT suitable for children.
Children are highly impressionable and tend to replicate what they see and hear, be it consciously or subconsciously. Therefore, I do NOT recommend this series for children. For older kids, the Looney Tunes Show (2011) is a better alternative; it's not as violent, it's funny yet still manages to depict consequences of bad behavior in some of its scenes.
Perhaps this series is intended for adults. However, as an adult, I didn't enjoy it. It seems the only theme and plot to the entire series is violence, pain and troublemaking poorly disguised as "pranks". This overshadows other positive factors in the series such as image production quality and skill of the voice actors/actresses.