Would of had zero stars if this could have been selected.
Spent over an hour trying to get it to work but no joy......
Kinect worked fine previously but just had a small room so no 2-player games could be used, but after attaching the lens, it would no longer recognise the lower part of my body.
I followed the instructions to a 'T', and even used suggestions of different coloured clothing, lights on, lights off, curtains open, curtains shut.
Having then surfed google and read other blog posts, this was a regular problem with issues over regular re-tuning if ever working at all.....check for yourselves.
Most frustratingly, the lens scratched my Kinect, and yes I returned for a full refund, and my Kinect is back to recognising me again.
If there is any positive, it does bring larger amounts of your room in to play......but not a lot of good if it does not recognise anyone in that room.