They seem to be getting better, but I understand they still have a habit of burning up their control panels..literally. When these go on and you are enroute, certain wind conditions allow flames to back into areas of the heaters where they should not be. I also talked to a couple that had a remarkably loud bang each time they turned on the hot water. Seems like it was a small explosion each time the unit came on. No further damage but...???. I'll stick with my tank type for a while until they get ALL the kinks out.