Waze helps for stationary cops but does nothing for rolling cops (which I am still surprised that they haven't implemented, they know the approximate speed of traffic, tagging a rolling cop would be simple).
I haven't used them personally, but afaik, you need to get one that is anti-detector-detector. Cops apparently pick up the cheap ones easily (and insurance hates you if you have that ticket, I think it counts as a major I was wrong, minor ticket). At least one cop in TO got around that limitation by flicking on the radar and watching for brake lights. If they were closely correlated, he would pull them over for a look.
If I was buying one, I would do remote display. Sensor in the grille or at the top of the windshield if installed well will look like factory radar cruise sensors. A few led's in a vent or somewhere to alert. Detector disabled in park, with the parking brake one and probably one other safety so it would be off when they were looking. On a bike, probably gut a scala box and put it in there. Led's at the side of the visor
Lidar is much harder for something to pick up (and it works at long range). By the time your detector alerts, it is all over unless you have either treated your vehicle (especially the lights) the absorb the required frequency or use an active jammer. Waze should get you most of the laser spots on well travelled roads.
Personally, if I want to get somewhere in a hurry, I look for a rabbit and let them get pretty far ahead (they need to be far enough that a cop will light up and pull out before they pay attention to you). Normally, I keep them 30 seconds to a minute ahead so I see them often enough to know they are still there. They won't save you from a big speed trap with one person on the gun and a ton of cars for the stops but I rarely see those in Canada. Nothing will save you from the chopper/plane if you are really cooking and get their attention. Prior to 172, I figure I did >10,000 km in Ontario above 172 eligible speeds. After 172, only a few seconds here or there but not often at those speeds. Cost to reward is just too horrendous for me. I'm not running, that moves the odds even further away from my side.
My worst almost ticket was just prior to 172 when I passed a cop at 165 in a 50 on a Honda demo ride. We came out of a corner and opened them up a bit north of Guelph (2-1000RR, 2-600RR and a VFR). He was headed the other way and didn't bother turning (thankfully). A detector wouldn't have helped me. It wouldn't have been on that bike and if it was helmet mount it wouldn't have seen around the corner. By the time it went off, he would have had me.
