I am planning on using this on an upcoming project since it's in better shape than what I was throwing together to do similar things. My tests so far with it have been pretty solid. The only odd thing I've run into is that with the new post-processing layer activated, the tracking loses accuracy and wants to stick to the camera to a significant degree. I have verified this on iOS and Android. This isn't a deal-breaker, but I was hoping to apply a little post-processing too. Just thought I'd mention it as something I'd come across. Thanks for putting this together!