Looking High volume RODI

What do you think about this one and what others should I be looking at?

http://cgi.ebay.com/Aquarium-260-300-GPD-REVERSE-OSMOSIS-RO-DI-WATER-SYSTEM-/350426984724?pt=LH_DefaultDomain_0&hash=item5197137114

Thanks Yuki
 
I have macr's large unit and love it! 35 mins to make 5 gallons, it comes with an online tds meter and will show you before and after the di. Mine is 3 months old and still holding 0.
 
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