Yes! I've just been refactoring dashboards for Grafana 3.0 including use of the table panel type and verifying import/export works correctly. And in Harvest a variety of stuff has been added including NFS v4, v4.1, backend disk adapter stats, fcvi mirroring stats for metrocluster, and more. I've also found a bug in Grafana (https://github.com/grafana/grafana/issues/4861) that is targetted for 3.1 and impacts a few dashboards. It's not the end of the world, but can be a little clunky to navigate on a few dashboards where you will hit it. That said, 3.0 fixes some flakyness in the 'related dashboard' auto-populate dashboard template feature used when switching between dashboards so that's nice. So I do plan an update soon.
Cheers, Chris Madden
Storage Architect, NetApp EMEA (and author of Harvest)