they installed one in our home bout a year in a half ago, a few weeks later my wifeanon and I had them replace it with the old one. Almost all of us in our town who switched out or refused to have the new replace the old haven't been billed pending law suits in Kalifornia. Indeed, we still are hooked up and receive electricity but no bill yet.
with all this hight tech fuckery, we're not going to take the risk.
make your own decision, my suggestion is NO fucking way.