Looking for feedback on a new tool for Web Developers!

Hi everyone! My friend and I are currently developing a web app called Marky - a visual annotation tool for web development feedback. I was just looking to get some feedback from anyone whether or not you are web/UX/UI developers and if this is something you would be open to using for your own services with your clients to help improve your communication and feedback with them.

The goal of this tool is to essentially save time and hassle and improve communication, feedback between you and your clients, this is done through our tool that will be able to overlay onto your web development page, and your client will be able to directly add annotations, comments and to do lists so you are able to not only complete projects faster, but also more accurate to your client’s needs and feedback. Our website is: https://www.usemarky.io

Any feedback regarding the website, layout or the product itself would be hugely appreciated!