[69hugger]

My opinion is they are not worth the hassle of false alarms & your (my) constant focus on it looking for every little blip or beep from it. Not to mention if the cops have LIDAR (Light Detection and Ranging) technology, you'll get no warning.
In some states, detectors are illegal. If they see your detector, they will confiscate it & give you a hefty ticket for it. And, the cops don't like them. They view them as a method to evade the law and will treat your stop accordingly, meaning you'll get no break. I have personally experienced that. Hell, I've even talked to people that got an additional ticket for obstructed vision because it was on the dash.
Many years ago I came out from a friends house to a smashed side window and a missing Passport on a very cold January night. My wife was not amused on the long drive home with no window, sitting in glass.

I seldom see them in use because of all of this.

My Camaro came with the latest (5-6 years ago) built in Escort 9500ci with built in laser jammers, front & rear jammers/detectors, GPS, blah blah blah. The operation manual is 27 pages. Talk about complicated...
I tried to play with it, but gave up. Scared the crap out of me when I'd drive by a Home Depot because of the front doors setting it off. I finally shop the damn thing off. If it wasn't such a complicated installation, I'd pull it out & sell it.
I find the "head on a swivel" is my best bet, but then again I don't often drive "like some of you"!

This is just my $.02. YMMV.

Have a great tour. I'm very jealous. I signed up for it for the last 2 years, but haven't made the cut.