I think that most people are afraid of it just because it's sold by Harbor Freight.
But isn't it pretty rock solid? I've been very happy with mine.
2010 696 ProTune Powermap programmer, EvoTech tail, Quat D Alum slip ons, Artrax wavy rotors, K&N, 14T, bar risers, G2 Throttle Tamer. Still working on swapping all of the black plastic over to carbon fiber. Oh, and no more ugly charcoal canister!