No arguments here about the implementation, or the 'goodness' of the law.
Just to note that it has e.g. forced my internet provider to admit they were using my data (IIUC, mainly for advertising purposes), and they have given me the option on logging in to disallow that.
How much that is worth, I dont really know. But it was nice to click no, and then to confirm 'I will forego the wonderful benefits of targeted advertising' (that's a fairly good translation of the text) etc. etc.