**Pros:** For the most part, does what it claims it does, and gives you extremely precise, fast tracking of fingers. Cons: Really hates thumbs for some reason. Has a lot of trouble with pens or other implements. Fingers must be separated. Fairly easy to get positions that break the camera because it can’t see the fingers. No one has any idea how to write software for it. I just got my Leap Motion device today, and for the most part, I like it.