The biggest benefits of the enterprise UI toolkit are:

• Allows for shared understanding of design and front end development best practices
• Allows re-use of assets in the application
• Allows the designers and developers to standardize a consistent set of patterns throughout the application
• Allows for sketchy wireframes to serve as final deliverables in many cases
• Allows you to move away from repetitive specification documentation by just referencing your patterns
• Supports the growth of the product over time