The former Imperial droid has a very different attitude than any of the droids that we’ve seen in Star Wars films so far.
We were told before the release of Rogue One: A Star Wars Story that Alan Tudyk and K-2SO would steal the movie and that appears to be the case for many.
Especially considering that it’s clear that Anthony Daniels could have played a character like that but has to do something else.
It’s a bit refreshing to see one that has an attitude.