I needed the distiller for my husband's natural cancer protocol that required pure water. My 25 year old unit was aluminum and starting to have an after taste. I ordered another unit but received this one and started using that day. I let the company know just in case something happened during the warranty period and the response was quick and willing to replace it. I love this unit, the water is pure and taste good, it is easy to clean (very important) and we have the water in 4 hrs instead of 6. I am so pleased with the quality of this unit in every way.