Does anyone have experience with Prometheus/grafana monitoring within rancher? I'd be happy to hear about your experience.

Do you mean to monitor Rancher itself or to monitor downstream clusters? There is a difference.

The main goal is to monitor downstream clusters then rancher.

It's actually pretty easier to set up using the marketplace. It's pretty much a stock configuration. I've never set it up in production, only for testing but it's very straightforward.

I'm planning on using it to monitor clusters from different clouds. do you think that would be efficient?