I have the SR7 plus shifters from Escort. I just had it installed at Tweeter yesterday. I must say that it's pretty awesome. All the sensors are hidden away and it seems to be working perfect. The only downside is it MUST be professionally installed otherwise Escort will void the warranty on it. I personally swear by Escort, after all they're known for being some of the best radar defense systems out there. I don't know, everyone has their own opinions. Check it out for yourself.

http://www.escortradar.com/sr7plus.htm