I DNF'd one #BacklistReadathon book this month because it was gross (Valiant by Holly Black) and came very close to doing it to this too, because it features the worlds most revolting dentist. (Racist too, but at least he gets some comeuppance for that.) I wound up liking it okay, but I don't think I would've missed out on much if I had DNF'd it. (cont.)
If you enjoy Stibbe, you might like this, but IMO it's not her best.