Bought one after seeing your positive reviews. I paid €63 with a coupon on AliExpress, and so far I'm very happy with it.
I get a few false positives, mainly when turning at intersections, but I haven't had any false negatives so far. Battery life is around 7–8 hours using a custom flashing mode (2-second cycle, 25% on-time) and the alert flash when a car is approaching.
On straight, wide roads, it usually starts tracking cars from around 140–160 m away, and I've even seen a few detections at 180 m. Multiple vehicle detection seems good too, tracking up to 3–4 cars.
I'm not a big fan of the design with the multiple LEDs (I personally prefer a single, more focused light like the Varia), but that's just my preference.
Overall, I'd say it's a solid radar, especially for the price.
