So my brother gifted me a Leap Motion last year. I tried it for some time but it is not really very useful, and tracking is not that great.

It seems that the new version of the software, Orion (https://developer.leapmotion.com/get-started), made things better. But it has been in beta, and Windows-only, since at least last February... and the list of "known issues" doesn't seem to shorten over the months.

The gadget is now again in its box, where it has been for some time now. It's sad to see that they pivoted into VR based interaction, completely abandoned their current users in the process, and are now only working on the new VR version.