I just beat the game with good karma. Not sure why some people didn't like it, I thought it was pretty good ending. It was expected, but I liked it.
Also, I wish concrete had a karma bomb. It would have been so cool.
I'm team Neon. Love that power.
Neon and video are the best ones. I feel Concrete was a bit rushed. It came right at the end of the game and the traversal is a pain in the ass.