Only thing about this system is the SMALL DI filter.
He only lists it good for 538 gallons of 0 TDS water. Of course the filter is only half used at that point. But even 1000 gallons from a DI isn't that much. Most larger ones are rated at 7500 gallons for a comparison.
Otherwise, a GREAT deal.
$99 for a 5 stage, then $25 S+H, is still a great deal. Even if the DI is not the longest lasting one.

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=2315880506

Ed