Great!
Highly recommend; and premium is reasonably priced. If this app was opensource, and the sourcecode could be peeked at so nothing gets installed to the server maliciously I’d give it 5 stars. But seems okay. A way to notify if a vm or proxmox baremetal goes out would be good as well, but I can’t see that happening without it being annoying if the server doesn’t have a public hostname because leaving your network would cause a notification. Leave that up to netdata I suppose.