If you are new to Kodi, setting up Kodi is a tedious process. Have you ever thought of having a customized Kodi interface with all the necessary Kodi add-ons pre-installed? If yes, then Kodi builds are the best option for you. But those skins will only change the appearance. You can try any skin available in the Kodi addon repository. To give the best user experience, Kodi already has lots of skins.
If you are using Kodi for a long period of time, at one point or the other, you might have thought about customizing your Kodi.