Went from Albany to Stowe Vt and back in the last 2 days. I programmed the V1 to turn off X-band alerts, and since then it has been very reliable. On my 50 mile drive on i-87N i got 3 KA alerts, each time was a trooper trying to pull people over. Alerts were early enough for me to slow down from 87-85 to 75. On one instance, a trooper came from behind and the rear arrow went on. I slowed down to 70 and had traffic flying by me, and the trooper just looked over at my car as he passed by, and then turned around in a median.
However, In VT the police were using K band. I encountered them on my way back from Stowe. Along the road there are a bunch of signs that caused my V1 K band alert to go off. After having this happen 4-5 times i started to ignore and only slow down to 80 from 85. Sure enough i encountered two troopers in a median each gunning one side of the highway. Luckily i didn't' get pulled over, as i was able to slow down a bit when i say them, because i was looking for an alternative reason for the alert.
All said, the V1 is amazing. Stomps my friends 8500 x50 for sure. If a truly better detector comes out in the next couple of years, i will buy it, but i am not sure it will replace the V1. I might dual wield.