Things I liked: Super bright light for the money. You can't go wrong with this light. Removes and mounts/tightens easily with out tools. Love using it at night.
Things I would have changed: Nothing, it does come with the 2 required batteries which are a plus.
What others should know: Batteries could be expensive for this if you don't buy them in the right place. You can pick up some surefire replacement batteries at a sporting goods gunshop for about $3/battery