I like it but the price is far too steep for something that simple, both companies are guilty of this. As much as I love flex & rupe's and their polishers + pads. You can get something far more efficient, powerful and durable for half the cost. These I simply can't justify, especially being the lighting fanatic I am. If they aren't powered by 18650's or better they are honestly a waste.
This ultrafire H6 will blow both the rupes and the flex out of the water. I use this and the headband really makes mobile work cake.
Official UltraFire-Shop - UltraFire H6 (Special Discount)Free Shipping
I also have a 7x Xm-l2 that I picked up for the same price as the flex light.