I just got my airwaterice typhoon and am really happy. The product is nice, but the great part is Walter. He really understands these systems and if you have questions he replies to e-mail seemingly around the clock. Off the auction site you never know what you are going to get and if it turns out to be junk more often than not you're just screwed. Walter, on the other hand, clearly stands behind his products. Plus, for most people without multiple huge tanks needing only 10-20 gallons a week, I think the base model (typhoon) is more than adequate.