Although the reviews Norwex receives are overwhelmingly positive as of 2015, there are a few that are negative. One of their more popular items, the Basic Antibacterial Microfiber Cloth Package, has 12 percent of reviews rating at three stars or less out of five on Amazon.com.
One reviewer deems the cloth overpriced and that is does not work well with stainless steel. Echoing this statement, a different customer says they are not much different from micro fiber cloth and there are better alternatives for less money. Another reviewer noticed a foul smell after only a few uses. For the Norwex Window Cloth, one review states the cloth scratched glass. Another reviewer thinks it is no better than Windex and paper towels.