I've used GW a couple times, an extra light and a 60/40 wheat blend. They sell it in 1.5 kg/3.3 lb boxes. Worked well, but make certain you are getting their brewing extract, as they do make malt food extracts.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
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