Nova launcher is not good for your mobile or tablet. I downloaded this launcher and I feel there is nothing interesting in this launcher.
I was using the mi phone but this launcher not support that device. I have instal but its uninstall automatically.
there is no much feature for your device.
there is no good wallpaper of theme that make you feel good.
may be it will give the hang problem in your mobile.
its not supporting all device.
I dont think its nice or good. but its all depending on your device or your uses.