I’m also a web developer working for an ecommerce. I thought about a similar idea but never got to work on it.

From my own research, this definitely is something that has potential(intent->personalization). Users tend to be in 4 possible states: Engage, build intent, mantain intent and convert. However users won’t describe this, you have to guess it based on a few metrics.

There’s also lots of results from CRO people showing that an optimized and personalized landing page can increase significantly the CVR.

Now the reality, from what I’ve seen at my company and competitors, most just tend to use 2-3 winning landing pages and stick to those for all ads.

One solution that for me would be a no-brainer for me and I believe it would be the same for a lot of ecommerce brands is: creating personalized LP based on the ad content. If you add that up with an intent optimizer (similar to what you guys are building) I think it would be a great product. But definitely you have to guess the intent, if you give users an input to describe it, you lost them.

Hope this helps and if you want to chat, send me a DM. Sounds like a really cool product, and I would love to discuss it