I have a 12 year old AO Smith Hybrid water heater. I did have to repair one relay (contactor) but other than that, the thing is holding up very well. Worth every penny. Keeps the garage air conditioned, and 80 gallons is enough to run all 6 showerheads.
The interesting thing is that my electric bill went down when I installed it. I had a window AC unit in the garage and a propane water heater. The AO Smith hybrid uses less power than the window shaker! And I no longer use stupid amounts of $7/gal propane.