Review (4/5): Working great for about 5 months
This is a really effective product. The one knock I do have is YOU ABSOLUTELY MUST(!) run 1 - 1 1/2 cups of vinegar through any of these units, at least once a month. If you don't, they will clog and become useless. I ONLY use filtered water in mine, and it still needs the vinegar treatment. I didn't do that, with my first unit. It lasted about 1 1/2 months.