What I did to have a fuller kit kat experience was download nova launcher beta (novalauncher.com/beta>install latest apk on phone). In the settings, you can change the icon theme, app drawer transparency, scroll indicator, folder background color, font, nav and notification bar transparency, and more. I got really confused about what was changed and what was not because I had the launcher installed before the update. It kind of seems like a half a**ed update, but an update is better than no update, so I'm grateful. I'm disappointed that the dialer app does not do business searches and I'm wondering if the business caller ID works. Also, the update seemed to override nova launchers icons, switching the dialer app icon back to the old version. I had to download kit kat HD in order to get the new dialer icon back. It's a little thing, but I like the new icon better. Also, I hope they update Motorola assist to support hangouts.
Sent from my Moto X