I installed one this year. I looked at the Desert Spring one, but decided to go with the Air King 6000 Flo-Through model.

http://www.airkinglimited.com/airkingca/Default.asp?action=read&art_id=298

I like that it doesn't have any standing water at all, uses a vertical water media box. It has been working perfectly thus far. Easy to install. You can buy replacement inline filters (for water supply line) and filter media. Also comes with a basic softener additive to keep any mineral particles in suspension, avoiding scaling.

Humidity in the winter is a significant issue here, with the long and cold winters and the furnace running frequently. Mine has kept my house in the 40-48% RH range all winter, has a digital thermostat built in. Very happy with it!

__________________
Chris
2007 E550 4Matic - 61,000 Km - Iridium Silver, black leather, Sport package, Premium 2 package
2007 GL450 4Matic - 62,000 Km - Obsidian Black Metallic, black leather, all options
1998 E430 - sold
1989 300E - 333,000 Km - sold
1977 280E - sold
1971 250 - retired

"And a frign hat. They gave me a hat at the annual benefits meeting. I said. how does this benefit me. I dont have anything from the company.. So they gave me a hat." - TheDon