Yeah i dunno whats with the gizzmo slaggin, mines worked perfectly since its been fitted,holds boost great and is nice and adjustable. I think its more idiots setting them up wrong and slaggin them because they havent got a pritty screen to look at lol, maybe you should try reading the instructions!! and what you mean it doesnt have safety feratures lol, of course it does, it has overboost protection and a couple of other others if i remember right!