The range of customizations and tweaks the tool gives you are considerable -- more than 200. Want to change how the Taskbar looks and works, disable Start animations, or change your User Account settings It'll do that.
How about protecting your privacy where you can disable telemetrics, how your Advertising ID works, what Bing search knows about you, and more Yes, it does that as well.
You can also tweak the Context Menu, make changes to File Explorer and a lot more.
Although it's got plenty of features, it's simple to use. It's a lightweight program with a simple interface, organized by category of tweaks, including Customization, User Accounts, Performance, Security & Privacy and more. Checkboxes, sliders, and similar simple controls let you make your changes.
Given that it's free and simple to use, there's no reason not to give it a try. I've been using it since it came out a few days ago and haven't had a problem since.