I'm not sure it's something I would use but it looks like some good work.
At first glance the pricing seems a little high for a single-use tool. It is still cheaper than using humans but also, as it sounds like you are aware you are aware, there are some issues demo page that the AI agents didn't call out that a human would have.
I like that you included developer tool results in your summary. Consider possibly including Accessibility results in there as well. A11y is something a lot of developer and product people don't think about. It could be you already have it and I just didn't notice.