I have had an insinkerator for 30 years and have been changing models as they put them out because they break or get corroded. Presently I have the InSinkErator F-HC1100SN. It seems their guarantee is for 5 years but if you have a part replaced, it is only for a year and that part pretty much goes out in just over a year. It is wonderful to have the hot water available for coffee, tea, soups, cleaning spoons, etc but the price of the unit has just skyrocketed in the last few years. Maybe made overseas like everything? The cost of the filters is really too high to be worth it. I would prefer not to filter the hot water because a plumber told me there is always bacteria in the hot water. Just give me hot water in a faucet that will last!