The Stealth House has an electric water heater.  The only fault I could find is the accessability of the controls to turn the temperature up or down.

Apparently my heater has an upper and lower element.  I don't know if this design is standard in all electric water heaters.

I had to remove two panels and dig through a thick layer of insulation to get to the dials that control the temperature.  On every gas heater I've ever had I just had to remove one panel and it's right there in front of you.

As far as operation goes, I have no complaints.  The heater works great and I even had a limited amount of hot water after the power had been out for two days.