yes, most definitely. My Valentine 1 has paid for itself the first 2 times it went off when I was speeding. If I'm traveling on the highway, I don't leave home with out it. The only time I've actually gotten a ticket while having it was when the cop was using lidar. They will detect lidar, but by the time you get the signal they've already got your speed. I know when I've been hit with lidar and I've been speeding, I usually pull to the slow lane or exit the freeway and wait for the cop to catch up. This usually scores some brownie points with them and most of the time they let me off with a warning.
The v1 when set properly will not give you false alerts, and on open flat road I've had detection up to 2-3 miles before I came across the highway patrol that was setting it off.