Check my sample video's here: I'll be the guinea pig for the new SD59225U-HNI PTZ.
You can see how bad the focus is in the July 2016 version. It takes forever to focus in the July 2016 firmware version. That is actually worse than having only 2x zoom in autotracking. So that's why i went back to the March 2017 firmware. And now I'm hoping for someone who can send me the september 2016 firmware to test.
I did notice my ptz seemed a little slow to focus sometimes lol.