I can't provide feedback on the TAZ but I own two other Light & Motion products.
The Urban 800 fast charge is excellent. Beam pattern is second to none and construction is top notch. Gets warm but not hot. GoPro mount makes it very versatile. The Vis 360 Plus helmet mount light is with me every night ride. Beam pattern is also excellent and makes the 250 lumen model seem closer to a 500 lumen light. My only gripe with the Vis 360+ is that the wires are somewhat delicate.
Beam pattern is just as important as lumens but 2000 is a lot. You will want to be careful in traffic with 2000 lumens. I own a 1200 lumen Exposure Strada and it is blindingly bright but the beam is too diffuse making it seem like a lower power light. Anyone can make an LED lamp which throws an insane amount of light but not everyone gets beam pattern right. A flood is better for the trail while a strong spot with moderate flood is good for the road.
Bottom line is my experience with L&M products is that they are extremely well made and have excellent beam pattern. Hopefully someone can give feedback on that exact model.
-Tim-
Last edited by TimothyH; 11-11-17 at 09:06 PM.