i drive a corvette and have tried cobra,beltronics,whistler (all top of the line units) and my valentine 1 is so much better its not even close.
*they repair them forever if they break, have a ti body, unlike others w/a plastic. that cracked on all my other detectors after a yr or so, from falling/etc cuz of the rough ride my car has.
*they will update your V1 for a MINOR fee
*directional warning and number of "bogies" unlike others (doesnt sound imp till ya use/compare, and then it makes a lot of diff)
*much better at falses (ie if the V1 goes off K or Ka band, slow down, it is 9 times outta 10 the police, ESP. Ka band)
nothing works very well on laser, but not many use it in this neck of the woods anyway, cops dont like it as ya cant be moving, cop car has to be stationary (maybe not on some VERY new units)
if ya NEED a radar detector, get the V1, they are the best going, no doubt about it, worth every penny, i have 2 of them.
greg