I bought the S2 and used it so far for about 500 miles. Even in Highway mode this thing almost never falses. Walgreens, CVS, ....etc do not false. This WORRIES me. I turned it off, plugged in my RX65 and it was going crazy (5 - 6 on the alert scale).
I am ok with a little less range of a cordless for city driving but WTF no alerts from all my everyday false spots. Something not right here. It has falsed about 10 times in 500 miles of city driving.