I agree - my experience with the Magene is great other than the battery life.
My Magene radar light has been flawless other than the battery life
I had the Magene for 2 years as my primary back light. So in general I would also say it worked fine, recognized most cars. BUT I have like 1-2 "Ghosts" per hour or more. There is spots, where it always "recognizes" cars, but there is nothing there! Did you not have those kind of issues?
Battery... yeah, I would guess like 5hish or so.
IGPSport blew it out of the water for me, still waiting for a reply from those guys on how to change blinking, or timeline for software updates.
I want to to a side-by-side comparison on the same road, maybe this weekend. Same spot, then I can compare the distance between the 2.
Otherwise: SR-Mini is lighter (49g vs. 63g for L508), smaller, brighter, has longer battery, looks better etc. at the (!)same retail price of about $99, so for me it's quite clear winner.
Fun fact: At Eurobike, I asked the iGPSport guys how many R&D people they have, he said about 100.
Same question to the Magene representative: 38 (Not sure, if that same dvision is also responsible for their vast hardware portfolio from exar wheels, to smart trainers, powermeters, groupset, lights,... nowadays).