Big plus is that it uses AA batteries, always have them on board. The neck piece was a little too long for my purposes (sailing)so I just substituted one of the around the neck name tag badges they give out at conferences and it is great.
Pros: the intensity on high is excellent and the low setting is very useful for most applications
Cons: Getting to low setting is a little difficult
This review was written in the old system and had content requirements that are different than reviews written today.