The up on the touchpad doesn't always work making games that require using up on the touch pad unplayable. It may work a bit then stop. Games like Dreadhalls suffer the most since up is required to walk.

I've seen this complaint on multible reviews for multiple games. Dragon front also uses the up to examine cards but a lot of the time it just don't work. Seen other reviews on that game that also have this problem.

I don't know if this is a software issue or a mass defect in build of the controllers but it is ruining the experience of a number of games and should be rectified.