Quick run down, My wife and I just bought a house and the previous owner moved out 6 months before we bought it. Left the water on and the power. So the water just sat there and simmered for 6 months in the water heater. Now the hot water smells like a big box of buttholes when we take a shower. The anode is seized and I flushed the tank a few times to no avail. Now Im going to have to purchase a heater. I can get a good deal from my supplier but I was looking into the Marrathons. Enviro-foam insulated and no anodes cause its complety plastic. They carry a life-time warrenty and if I sell the house then the next ho has a warrenty for 15yrs. Its pretty costly around 750$ for a 40gal. Im not sold on them yet, heard they have problems with the control boards. Was just wandering if anyone has installed them or have one of their own. Was curious about recovery time and if its worth the bill. Im total electric, if not I would go with an instantanous for sure....