I strongly recommend the Escort Passport 9500. I've owned the 8500 before and they were great, and recently got the 9500... even better. I've done side-by-side with the V1. The only thing I liked more about the V1 was the directional indication.
The Passport 9500 has GPS features that will automatically learn false alarms and ignore them. Truely is awesome.
I know radar detectors can't protect you 100%. Using the passport detectors for the past 6-7 years and speeding like hell, yet still paying attention and being careful, I haven't gotten a single speeding ticket (and I drive daily through speed traps and notorious ticket cities)