I am waiting for the new 120 volt models to ship. And I'll get one.I put in an AO Smith 40 gal last year to replace an electric heater that was in the house when I bought it in '94, and I suspect it was the original to the house when it was built in '70. Don't make them like that anymore.
I knew there were high failure rates on hybrid heaters when I bought it, but took a chance. So far, so good (jinx....) I keep mine on heat pump only mode all of the time and it provides all the hot water I need. Someone mentioned that the space it's in gets cooled. Sure does. I have mine in the basement and you can feel the coolness. However, it's also a dehumidifier, so it takes a significant amount of moisture out of the air, lessening the load on my standalone dehumidifier. My basement has never been drier or more comfortable.