I have installed the QI45 on a 05 4runner and have been running it for two weeks now so here are what I think about the performance of the Detector against the V1 in NJ so all bands are on.
1. The detector performs well against real threat I had several X band encounters and both gave me over a mile of warning. The Leo had a customer and the others were just running co.
2. QI45 performs very well against K band I had two hits of constant K the first was 1.8 mile and the second was 1.6 mile.
3. KA band was not verified I did get a couple of short burst of moving IO Ka but could not verified the distance and the location of the trooper. it happened at night and the V1 was off so couldn't tell if it was front or back.
Now I think that escort has to do better with the filters, local driving is a headache but I just deal with it. V1 is not much better so I like to just run with the QI in town.
Now overall I think the detector offers good protection and has given me good range on verified Leo. I had both detectors on most of the time and for some reason the V1 and the QI are very close in performance with the V1 edging it a bit. I know some people will say that the V1 will kill it but I can only tell you what I have seen. KA I think V1 will destroy it but did not see much ka in the last two weeks. I will keep on testing it when I get more details I will let you guys know.