has anyone seen this E&G kit b4?

notice the controll bucket is same size as res? these are the only kits availble where im from just wanting some opinions before i buy it. i plan on growing 12 plants. will this kit do or should i try build a small control bucket and whats the diff?
THANKS!

http://sog.open24x7.biz/catalog/product_info.php?cPath=8&products_id=296&osCsid=748f05b103f0e46154475ffb33a84ba3