It's pretty strange. I mean, my experience back home is all doppelgänger, and that never ends well. People are always trying to kill doppelgängers, face twins don't seem to get along, and oh just when you know... you could get used to the whole Elena/Katherine thing knowing that like a THOUSAND years ago someone else ALSO looked like them, if you watch my show, you then got to find out (so far none of us there seem to know) that oh ANOTHER friend was actually a doppelgänger, whose face twin is far far worse than Katherine was. So seeing people here? I gotta remember they're not evil since SHIELD let them out and all. But the kneejerk reaction is to be like, "oh god oh god am I in danger?"
I don't mind the actress so much, especially since she seems pretty in tune with my opinion on my relationships. So hey there's that.