Works well so far. The only complaint I have is the awkwardness of how the controllers sit in the charger when they are recharging. It does take up a significant amount of space (height) if you have them stored in certain spaces in an entertainment center. Allow for at least 6-8 inches of height if you are considering buying these.
This product is worth the money and works well... and charge both of my controllers at the same time and when they die I don't have to worry about changing the batteries or battery packs I just put it back on the charger