Nova Launcher - Customizable?

Nova launcher is most top wanted list launcher from Tech Youtube commuinity. Good in customization. After I installed on my 2 older phone, everything seem smooth from scrolling, swiping, opening apps, battery life is incredibly decent after this installation.

Link is below for anyone that interested in trying Nova Launcher. 

 Link https://play.google.com/store/apps/details?id=com.teslacoilsw.launcher&hl=en