Well iv'e only had this thing for a week now and can only compare this to my old bel 925. As far as confirmed contact with l.e. i've only had 2. The 1st was a marked unit sitting 4 cars behind me at a stop light - rd picks up a 4/9 ka. 2nd contact was a marked unit unattended in a residential area, taking advantage of this i went up front bumper to front bumper and was suprised to only get a 8/9 k-band (yes my rd is located low on my dash). Now for known falsing x locations... out of about 10 times passing by these i picked up x-band 3 times, k-band 2times , ka 2 times, and vg2 alert 3 times. Now I don't know if that is normal for whistler but in the 2.5 years i owned my 925 i got a vg2 alert twice(both of which were on open interstate with visible L.e. in the area). I can't say whether or not i'd reccomend this yet but hopefully i've passed on some useful info for prospective buyers. Note: this is by no means a scientific controlled testing.