The Website Roast is an innovative tool designed to provide an entertaining yet insightful analysis of your website. It functions by accepting a URL input from users and then generating a 'roast', which is essentially a critique of the website in question.

The unique selling proposition of this tool is its humorous approach which aims to make the process of website evaluation engaging rather than tedious.

The 'roasts' produced by the tool touch upon various aspects of web design and content structure, effectively providing a multi-dimensional site assessment.

Crucial inputs offered to users pertain to potential improvements and tweaks that can enhance their website's usability and overall user experience. The process to generate a 'roast' is simple and does not require any sort of initial sign ups or extensive user details.

The tool offers a 'Generate Free Roast Now' option for immediate access. Note that while the initial tool usage is free, further details about pricing or additional features are not explicitly mentioned.

Nevertheless, the tool shows commitment towards continuous service improvement, as indicated by their open invite to users for reporting bugs or requesting new features.

Contact can be made through their provided Twitter direct message link. Though wrapped in humor, the Website Roast presents users with valuable feedback and potential areas of improvement, paving a fun way towards optimal website performance.