Mine was confiscated earlier this year by the Customs office at Schaffhausen. Cost me 400chf as a "admin charge" but luckily no other "penalty" since I am a foreigner.

My model was a good one, could detect all highway "hidden" cars with radar, but hopeless for red-light cameras or mobile standing ones, cos they are very weak strength radar.

Best one is Valentine One, but most costly.
Whistler is another good brand.
Mine was an Escort 8500. Very good.

However be careful about the police, they confiscate and fine you.
In CH, really no need to use one.

Mine was "sitting" in glove compartment when I was "caught", I was not using it for more than 1 year....funny.