Does what it should but there is definitely room for improvement. I get about 50% false positive reports. The L7 also struggles with a lot of traffic. Then it starts tuting my GPS a crazy, red-green-red-green.... When crossing another cyclist, I also get a notification every time. I miss an irregular flashing mode. Battery life is really good then. Hopefully software updates will solve the problems.
After my Magene radar failed, I went for this option. The price is very competitive. The radar does have trouble with several vehicles in a row. Then it beeps like crazy. Red-green-again red- ... I also get a lot of false positives, but maybe that will improve after updates. I also miss an irregular blinking pattern, currently I mostly use pulse mode.