There are three methods to customize the free Kandence theme so: using Elementor, Gutenberg, or the Customizer.
Customize Kadence with Elementor
Elementor page builder is suggested by Kadence WP so Kadence theme has a lot of pre-made demos for Elementor. You can import these demos or customize yourself with Elementor.
You have all the standard modules from Elementor and they all display properly and beautifully on your website.
Customize Kadence with Gutenberg
Kadence has advanced settings for Gutenberg editor even when you don't install Kadence Blocks. These options are mostly related to layouts and alignments. Even so, the layouts are visualized with symbols to help you easily choose the desired one.
Kadence has advanced settings for Gutenberg editor
When you install Kadence Blocks plugin, there is an extra settings sidebar and more advanced blocks. These blocks are more complicated than the default Gutenberg so if you are a beginner, it may take a few times to try them.
Extra settings sidebar and more advanced blocks when installing Kadence Blocks
Then, I review the synchronization between the Customizer settings and Gutenberg settings. Kadence free theme does a good job at this aspect. For instance, when you set the theme color in the Customizer, you can also see the color in the Gutenberg editor like this and you can even change the color in the editor.
The synchronization between the Customizer settings and Gutenberg settings
Customize Kadence with the Customizer
For those who are familiar with the default Customizer interface, using the Customizer in Kadence may be difficult.
Because many advanced settings also mean complications. For instance, I'm not a designer so it's quite difficult for me to understand and use this color option immediately.
Review the color option
But if you're a professional use, I guess that you will love this Customizer. It's innovative, intelligent, and different from the rest.
For example, it's never easier than using this interface to choose the desired layouts and edit the parameters of your site:
Choose the desired layouts and edit the parameters of your site
Especially, Kadence free theme supports header and footer builder so you can customize them with easily drag-and-drop action.
Review the header and footer builder
(Besides Kadence theme, I've reviewed another theme with the header and footer builder called Customify. But Customify has fewer options than Kadence).
And it's a piece of cake to add a large number of social links to your site:
Add a large number of social links
There are many other things in the Customizer. They will let you edit even the smallest detail of your site without touching any code.