i've read lots of really bad things about the react, plus its so ugly that i just couldn't! the sensor is ugly and cheap looking to me amd there are tons of m8's/m11's at my track. i've heard nothing but good reviews on the ko radio but don't like the small screen. i chose the 3pk for its awesome feaures combined with its looks and screen size. also, i think the fasst system will payoff! only time will tell. should be here wed. or thur..