Front end improvements/suggestions to an A.I. powered tool to write cover letters for UpWork and Freelancer

Hello freelancers. I have built a tool called Upbrain that is available to demo at https://upbrain.co for free

UpBrain is a freelancing productivity tool that scrapes the title and body of a job posting on UpWork and Freelancer.com. It uses A.I to generate a cover letter, saving you time when applying for a bunch of jobs. You can customize your profile as well to get more custom tailored cover letter responses. The service is completely free since you provide your own key.

I am looking for a freelancer to create an account, and play around with it. I would like this freelancer to provide a document detailing suggestions, and improvements that could be made to the platform.

Before you submit a proposal, let me know if you have installed and used UpBrain at least once! Bonus points if you leave us a review ?