I enjoy it. It keeps my mind at ease. I have a pretty big home network, and draw more power than I like with it and other items in my house.
It is cool to be notified if we have a power outage, and to know that it is tracking voltage spikes, power spikes, etc.
I will say it is hypersensitive, not in a bad way. Where I live, we rarely lose power, but one day I had a loss of power indication and less than a second later it said it was back on. I went home with the expectation that I would have a bunch of items with their clocks blinking, but nothing was, and my wife said she didn’t notice anything.
I’d rather it error on the side of caution so I appreciated the notification. I have had it for about 5 months, and the only notification I have ever receied.
For me, my insurance company gave me one so I can’t complain to much.
I still wish I could get into the API and make it a dashboard in HA, but that seems to not be going anywhere so far.