It’s very good and clean, I don’t know about electrical usage because there was not enough time since the review request email was sent to me.
So far I have indeed benefit of that extra water volume heat, it did improved my life as I have a large bathtub that the previous 50 gallons unit would not be enough, now it can get enough for a comfortable use of that bathtub.
The painel is super easy to use. Hopefully it won’t get bad overtime.
The app is… bad. Has a lot of bad practices in that app.
It requires login to the app, what means that in the future GE might shutdown their servers and the app won’t work further.
It’s very slow to open and will stay locked (you can’t do anything with any appliance in the app) until it finishes loading all the appliance list.
The app crash in the iOS often or not update the latest state of the appliance.
It doesn’t work with Google Home or Apple HomeKit.
The app is a gimmick, GE doesn’t take it seriously, but the physical painel for the smart version is helpful.