As an Every Day Carry item this light is good from a size and functionality perspective and I specifically bought it because of the USB recharagability which is all good. I did find that the tail cap button was hard to press and when I brought this topic up in discussion with others it was a "known" issue that many had experienced. The solution was to cut a circular disc of approx 7mm in diameter out of card or plastic material that is around .5 of a mm thick. Unscrew the tail cap switch and place the disc inside the rubber cap which when replaced then sits onto of the internal button. As simple as this sounds it actually had an effect and for the most part remedied the situation. Yay.