I did some HW on radar detectors. And I found a site that did a huge test on them. The V1 was the most "accurate", but the Bel 980 beat the V1 in 4 out of 5 tests. But still I'd choose V1 over anything! They built a reputation thats bar none. And they built that reputatin by getting there. But for me the Bel 980 will do, because its roughly $175+ cheaper then the V1.