I Really like it! If you're looking for a good, reliable 3.7 volt, removable 18650 tube, its great. 5 click on/off, blue circle LED around the button, All thick walled aluminium, 6amp (!!!) max rate, short protection, exultant . Only down fall is that I've been told by someone that it can't be kicked (if that's your thing) because of the electronics in it.
They also have a nice deal, I think its 5% off if you get a Panasonic CGR18650CH (IMR and Protected) battery and a trustfire 2x multibattery size charger.