I've finished this yesterday night, and the more I think about it the angrier I become so I'll just try to write here everything that I think is wrong with this damn thing. 
 I'm mad at what they have done to some characters, about all the plot holes and what that story means for the original story. Leave the past to the past, come on. 
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 I'll start with the character characterization problems. 
 Let's begin at the beginning : the 11 years old not talking like 11 years old, though that could change with the play being, well, played. 
 Except for Hermione : where are the female characters ? Rose is a prat and we only see her twice. 
 And, well, as for Hermione, once she is not maried to Ron in the first alternate reality... she is an angry old spinster who somehow isn't minister of magic anymore. So... Only marying some guy made her happy and able to become a minister of magic ? 
 Are you really trying to fuck with the first female heroine we had that was strong and smart and just awesome ? That's a first fuck you right there. 
 As we mentionned Ron, let's talk about how OOC he is. Did those writers only heard of him in the movies ? Because he does sound like a worse version of movie!Ron to me. And some kind of Fred&George, but cheap. And he runs a joke shop ? wth ? Did we forget that George isn't dead or ? That was HIS job, and Ron was never into joke games or whatever. And is he only here for (bad) comic relief ? He is supposed to be smart and kind too you know. Don't fuck with Ron. 
 Also, where the hell is TEDDY ?? He was an orphan and Harry took care of him too, and he isn't even mentionned in this story (also, James could have been dead in a ditch somewhere i don't think anyone would have cared) 
 Ginny is still useless, she is barely a mother at this point, she is just... here. Actually there's a line in the book that really describe her perfectly : 
 Act 2, scene 10 
 -Something about McGonagall and Harry-, and then "Ginny is not sure what she's supposed to be". 
 Well THIS basically. We don't even know how Albus feels about his mother, we just know he is in conflics with his father. 
 It's all about Harry being a father but WHO CARES ABOUT GINNY,REALLY ? 
 Well, not us it seems. 
 Snape is... Well, really nice. I don't buy it and I have a hard time seeing him when I read his parts but whatever, 20 years passed and things could have changed for him. I don't think he would have changed so much (and would have accepted to just not exist and die so easily) but whatever you know. 
 Cedric would NEVER have turned deatheater because he was humiliated in school. WHAT THE WHAT. This is so stupid. I'm not even a Cedric fan but.... WHAT. 
 I actually liked scorpius a lot, he was cute, and at least not just a copy of his father or of another character from the original serie. That was good. 
 Last but not least : 
 THE QUEER BAIT OMG. The whole story we get development for the Albus/Scorpius relationship. The script tells us that Scorpius is upset when his friend is interested by a girl, they even use the "you are not allowed to talk to each others, but you can't tell him why either" trope. They knew what they were doing, someone would have seen it. But in the end nothing... Scorpius asks Rose out. Oh, come on. So what now JKR, you're going to out them both in a later interview ? Fuck you if you do that again. Yes, that's a second one. 
 Now let's talk plot : 
 SO. MANY. PLOT. HOLES. 
 I'll just mention 2 because I have a life. 
 There's a spell protecting James and Lily's house. With a secret guardian (pettigrew)... Scorpius and Albus are NOT SUPPOSED TO SEE THE HOUSE. 
 And even if SOMEHOW Albus could see it because he is Harry's son (...) how did they get to the blanket ? It's either wrapped around baby Harry or in the house WHILE THEY ARE THERE. 
 And you know, how can they so easily get into Batilda's house to get ingredients ? SHE IS A STRONG WHICH. COME.ON. 
 THAT CAN NOT HAPPEN. PERIOD. 
 (yes, I'm mad :D) 
 Also : 
 Polyjuice potion takes 1 month to brew and ingredients are hard to find, Sirius Black is supposed to give Hagrig his mottorcycle when he gets Harry from the ruins. Why don't we see him ? 
 How can Delphi (let's overlook the fact that she is Voldemort's daughter with Bellatrix cause that's ridiculous. And Bella was pregnant before the battle of Hogwarts ? We've seen her then when she kiils Dobby !! SHE WASN'T PREGNANT. Hermione even takes her form with polyjuice and doesn't see that !) How can Delphi be so strong and how can she know how to fly when she didn't go to hogwarts and wasn't tought by Bellatrix or by voldemort ? HOW CAN SHE DO THAT. They need to be 8 to defeat her. HOOOOWW 
 In general : 
 They didn't even anything new. They re-used all the stuff people liked about the previous books. Polyjuice (to get to the ministry ? EXACTLY like book 7 ? COME.ON), time turner ? Voldemort, Umbrige, Snape... I was really just waiting for the marauders to pop up somewhere. Surprising that they didn't go there. 
 Time travel stories ALWAYS GO WRONG (except maybe back to the futur, though it still has a lot of plot holes) this couldn't be any different. 
 At least if you go for a new story... Make it something new. Don't fuck up with the original. I don't want it tainted by your crapy story. I'm so mad that this is canon.... I know the theater production is great and all but the PLOT. IS. CRAP. 
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