The first unit I received lasted for about a month, then the brightness selector knob stop working. I sent it and the required $10 in for a warranty "repair" and it was replaced.
I was disappointed in being charged for the repair and the overall function of the sight. Foe just a few dollars more there are better and brighter options out there.
For those that compare it to a Trijicon or Eotech have obviously never owned or even looked through either.
I purchased a Bushnell from Optics Planet as well and it is a much nicer unit, twice the price though.
Pros: Cheap and works.
Cons: Cheap and they charge for warranty repair.
This review was written in the old system and had content requirements that are different than reviews written today.