2 years and no problems. Saves lots of $$ on electric vs our 25 yr old 50 gal.

I didn't need to hook up the optional second element, I am able to take 40 minute showers if I want to.

I went on a vacation for a week and turned off the tank and when I got back home the water was obviuosly not hot still, but it only took like 5-10 minutes and I had hot water....very fast unit. (and thats without the 2nd element!)

The wife and I have never run out of hot water except twice... after she was in the shower 30+ minutes and then I was for 20-25 minutes right after another.