Around here all LEO use Ka band so I can turn X and K band off, every time the detector goes off it's a cop. It's very rare to see laser and they tend to always use it in the same places. Where I drive, 99.9% of the time they use Ka band radar and leave it on all the time, god bless them for that.
I have a redline detector, it works well. For me, I just want to know the signal level so I can respond appropriately, the redline gives me a lot of warning and a steady ramp-up of signal before I'm clocked, even in canyons. I very rarely get tickets but I don't drive at a speed I'd get pulled over routinely either.
The canceled track and autox events suck, gotta remember not to go too fast on the road this summer, detector or no...