Features: Root Explorer offers a wide range of features including the ability to access the entire file system on your device, copy and paste files, rename and delete files, create and extract zip files, and support for multiple cloud storage services.

Usability: The app is very user-friendly and intuitive to use, with a simple interface that allows for easy navigation through your device's files.

Design: The design of Root Explorer is sleek and modern, with a clean layout and easy-to-read text. The app also offers customizable themes for a more personalized experience.

Pros:

• Full access to the file system on your device
• Ability to manage and organize files with ease
• Support for multiple cloud storage services
• Customizable themes for a personalized experience

Cons:

• The app is not free and requires a one-time purchase
• Some users may find the features overwhelming if they are not familiar with navigating a file system.

Overall, Root Explorer is a well-designed and feature-rich app for managing and organizing files on your device. Its usability and sleek design make it a top choice for those who need to access and control their device's file system.