I don’t totally get why this Episode is hated? Don’t get me wrong, it’s far from great or even good, but there are some great bits to it, and I’d argue at least this one didn’t totally waste its Potential, looking at you, Idiot’s Lantern.
I do really like the core idea of this Episode quite a lot, it’s ambitious and while the ambition can’t be done too well with its execution, it does offer some fun (but admittely) clunky moments. The Idea of a lonely girl getting possessed is one that is done fairly well, especially when get to see some moments with the Mother of the Child, she does a splendid job in my opinion.
The Child Actress from Chloe does an okay at best, a “meh” at worst job. I don’t want to be too harsh, because even great stuff does struggle with some lesser good child performances and that’s fine, at the end those are children after all! Not everybody can be the Kid from A.I (a Movie I recommend highly for anybody, who hasn’t seen it yet!)
The whole deal with her Drawings effecting the real world is done decently, it gets repetitive fairly quick, which is disappointing.
Ten and Rose are at their worst here, perhaps? I do go as far as saying that Tennant might deliver his very worst performance in the role of the Doctor here. Piper does a bit better, but her and Tennant combined just doesn’t work at all for me (how shocking!!! Me not liking TenRose?? Happens so rarely!!!)
I would comment on the angle about Chloe’s abusive father, but it’s been a while since I saw that Episode and I don’t feel qualify to comment on that at all.
Kel is one of the greatest Character in Fiction, so that gives that Episode a 10/10.

But on a serious note: One of the biggest mixed bags. There are good bits here and there. There are some great Ideas, but I feel like the execution just doesn’t work and dare I say it couldn’t, at least as a televised story. A Character such as Chloe is one hell of a task for any child actor, so I don’t blame the actress for giving a rather bad performance. Its ambition make it interesting, but also hinders it from being something really special. At least this one made me roll my eyes a lot less, last time I rewatched Series 2!
Also, I totally forget the whole Olympic Aspect of it until it got mentioned here, so I think that says enough about my opinion on those scenes.