But if you're still relying on reviews of friends who heard from a friend's grandfather that the V1 was the best and you really want to buy one, read the independent review site Radar Roy tear the Valentine 1 apart here BEFORE YOU BUY ELSEWHERE.
While ALL radar detectors have 360-degree detection, Valentine One had a patented warning system that relied on both forward and rear-facing radar antennas (front and rear laser sensors too). It tells you which direction the threat is coming from. In front of you oncoming, or behind you.
Following the demise of the original Valentine V1 came the creatively name "Valentine 1: Gen 2". The 1980s style knob on the front is gone, it's in a new housing but with very little change inside. Probably just as good as the original as far as performance goes, because it was a very good radar. But the lack of parts, service, or warranty here in New Zealand makes it just as pointless as the predecessor, especially if you work out the price/performance vs locally available alternatives.