Not sure if your still interested but ill just add my input.
Ive had the Valentine for 4 years now, never had an issue with it, works great, ect. i originally bought it when i had my car, so i sped more with that. I use it in my truck now, i don't speed much, but on certain highways i go past the limit (not on purpose) and it saves me. I love the arrows so i know right away which direction. I purchased there hardwired kit, and have it hardwired into my mirror, so it just sits above it, no wires. Ive driven to NY from NM 4 times now (2200miles each way) and not once got pulled over.
So if it was me, i would stick with the V1, just since its simple and neat. i have nothing against passport, just my preference. i do like the GPS in the passport for the false alarms.
One thing i dont get is while in NY school buses never set the radar off, down here in texas/NM they do. anyone know why?