KodiBuntu is an Ubuntu-based distribution whose installation process is practically identical to that of any other distro. You can use the operating system image as a Live CD or as an installer via a DVD or USB device. This gives you the incentive of not having to weigh down your desktop and thus all your system hardware will be completely dedicated to multimedia content, which is very useful if you're using a system with limited technical capabilities.
For practical purposes, the included version of Kodi is almost identical to its stand-alone version: it lets you install all types of plugins and utilize all the tools included in the program. In other words, the enormous ease of use hides its power and depth in terms of customization, as it's totally compatible with the extensions and additional resources you use.
It's recommended that you have an Internet connection the first time you run the program so it can update automatically to the latest stable version.