now that i've owned one for almost six months i can report that it's the best radar detector out there.
the smart cord connects wirelessly to your iPhone. doesn't get any better than this.
2008 M3 Sedan + TestPipes + Tune [sold]
2012 CLS63 AMG + P30 Performance Package
2014 M6 Coupe + AMS Downpipes + KW V3