I haven’t seen much reviews on these and I wanted to share my experience:

I have used white and red flare pro for about 9 months now mostly for short city commutes. For the white flare pro, I used an Anker 5000mAh cylinder battery in a zippered triangle pouch that sits on my top tube. For my red flare pro, I kept it velcro'd to my backpack and then I had a larger flatter battery pack that just lived in the front pocket of my backpack.


Couple cons:
-the constant velcroing on and off of the front white light gets annoying with a daily commute, the Velcro straps provided often would get caught in the Velcro from the triangle pouch (sometimes necessitating both the pouch and the lights coming off at the end of my commute (instead of just the lights)) or the provided Velcro just vanishes (falls off somewhere) because it’s not permenatly attached to the back of the light. Squatting down next to my headtube to make sure the Velcro is lining up each time I want to use my white lights kinda sucks (but is necessary or else one end of the light may become loose a few minutes into my ride).
-no on/off button; when I bought the lights I thought this wouldn’t annoy me but until I could locate the battery pack in my pouch or backpack I would often blind myself/roommates
-with the white light attached onto the head tube I sometimes got momentarily blinded when looking directly down; (I have thought about designing a little duct tape hood for this looking down purpose but then again it’s symmetrical light meant to bleed out on the sides) I learned to run the white light weaker and be more predictive/look further ahead on the road
- the rubberized nubs (buttons) have flaked off/shaved off twice under my normal use within a six month period
Positives: responsive customer service (was able to return the lights with defective buttons), I can pick and choose the size and which battery I use, and I defiantly see more shadows/dimensionality to what I see ahead of myself when compared to my old cat eye light.

I could refine my mounting system. I wonder about jerry-rigging a plastic quick release system (like the type you’d see on a camera tripod or traditional handle bar mounted light) to my head tube with zipties and then tightly zip tie the male part to the back of the white light.

I agree with other posters though, maybe someone who mountain bikes or night runs on rooty trails would love this light but in the city and for a commute it’s a bit of overkill.