I've built this solution from scratch and am currently pairing it with a custom/prototype OODB.

These are the tradeoffs as I see them and based on my experience building:

In a self-hosted configuration, advanced analytics can be captured without JavaScript. It's unblockable, transparent, and incredibly fast. This is a stack specific solution.

In a cloud configuration, it requires a JavaScript trigger. With JavaScript, each capture (on a dev machine) takes 70ms including storage (cloud db). Performance is good but blocking is now possible. This is a stack agnostic solution.

One of the above suits me as a user; the other as an entrepreneur.