Well so far I don't like what my calendar looks like anymore. I guess the rest I can tolerate, or haven't noticed yet lol. But when I'm on Facebook, I will frequently start a comment, and then suddenly the whole thing appears with a green underline and then FB just closes and I lose the entire thing. Using Samsung stock keyboard and Nova. That is what I dislike the most. Sometimes it's not worth the energy to start over. It only started with the update to 12.