It's to early for me to comment about this light, but so far it's very bright ( like car headlights ) with good light pattern, looks like really well made.
Comparing to the "original" copy of lupine light which is magicshine, the headlight is identical, with solid,but different and more complicated bicycle mount, battery pack is two cells, battery case design is ok, batteries or the case are not waterproof, cable is long, it came without any manual or retail box.
For around $40 it's a steal, and all I hear from my biking buddies is WOW.
If price is the most important factor - go for it. If you want some peace of mind , you can buy cheapest magicshine for around $90.