So I did bash Sense recently for awful device detection (it still is) but like i said Sense is useful and here is some feedback on Power Quality.
I have a 13100KW SolarEdge with 39 290w panels. In SE monitoring I looked at the inverter error logs and saw a “F-L1 Min 1” error which is one of the mains dropped power below SE operating parameters. I also had seen from time to time my system chugging along and then dropping off production and then zooming back up. Was my SE system having problems? I the Sense Power Quality for the first time and noticed that Sense showed me on a graph where and when and by how much my voltage dropped on L1 to 58volts. So mystery solved!
Sooo another good to have it story for Sense.