Pros
The beginning is really captivating. I read the first few chapters of the book and feel that the show is able to make the intro race scene very exciting it also introduces the characters well.
The Charlie/Babe dynamic really works on me hahaha. Kinda hard carries my rating. I enjoy Pooh's portrayal of Charlie even though I do think it is the most different from the book. Though I think there is just a bit too much of shoving/pushing Charlie

Cons/Rant
My biggest gripe is that towards the end there are many plot holes and explanations that add to the confusion
*Spoiler*
For example when Charlie asks Jeff how he knows Reval is because he found him when he tried to escape Tony. This made very little sense to me because my previous understanding was that Charlie and Jeff managed to escape together. Overall it doesn't make me enjoy the show less but the more time I spend thinking about some of the plot holes the more I feel that I can't rate it above a 7/8.
I also don't really enjoy the waterdowned ABO explanation. I know that ABO isn't palatable to everyone, but the explanations that the show gives is a bit confusing. I think it would of made more sense to get rid of the ABO entirely and just say some are born with special powers. Though that would make the pregnancy plot impossible.
Overall I feel like there were also too many characters. I know people are upset NorthSonic didn't happen and I agree. There were just too many characters and not enough time to develop any relationship outside of CharlieBabe and AlanJeff and the confusing relationship between Way Kenta and Pete
I also wish there was more time to resolve issues in the final episode. Like Charlie and Jeff get no punishments for literally faking Charlie's death. Like yeah everything worked out in the end, but seriously no one reacts at all about Charlie not being dead for longer than one minute. In general Charlie is never really punished for his actions,,,
Another thing with Charlie's death is that everybody moved on wayyy to quickly. Like I can understand if they were locking up their emotions to process after they dealt with Tony, but literally no one other than Charlie seemed to care basically the very next day. Especially since all of the AlanJeff scenes happen after Charlie's death. Jeff knows that Charlie isn't dead so him not mourning is fine, but Alan didn't and he wanted to get with Charlie's brother basically right after he died
My review does sound like there are more cons/pros but I did find it enjoyable and cons are just overall easier to write.