Launcher Zen UI is quite customizable: you can change themes, icons, effects and animations. In addition, it works quite smoothly and smartly. But users report that it is somewhat more complex than Google Now Launcher or Nova, to which we have long been accustomed. However, it's sure more than Google Now Launcher. For example, you can block certain applications if you don't want that someone could run them without your knowledge.
If you go with a smartphone with Android 4.3 or higher, you feel that you have ceased to love the previously selected launcher, now you have the opportunity to download a proprietary shell from Asus. Trend asked HTC, which began to give their apps in Google Play, as well as giving a Sense wish to try a shell on its not HTC devices, and now this same car got in and Asus giving its Zen UI.