I'm surprised there isn't a lot of Curie love out there... She is the best thing close to a companion and a lover for a Good Karma playthrough! And she gets so wonderfully flustered when you flirt with her and so romantic when you reach max reputation with her <3.
I cant believe I held her back and didn't bother to make her a companion for the longest time even before I started getting into the main quests, it was always me and Dogmeat in the beginning, now with Curie maxed out I would only slightly consider switching her with Nick cause he is a cool Noire Robot with an awesome dialogue pattern.
And I'm not even close to finishing the game main wise ^^.