I do own one although I'm in the process of relocating it at the moment.
The way it was placed, the IR would for sure bounce back off of a wall 20 feet in front of it and ghost out the image.
Here's what it looked like with IR on:
Here's what it looked like with the IR off... I had enough ambient light coming in from the street for it to work well.
I'm in the process of moving it over by the garage, where it will look away from the house (down the center of the driveway).v I don't except to get much IR bounce-back from that, so I'll try running with IR again and post back with how it goes... It'll be a bit before I can get to that, though.
If you haven't had a chance, check out the review thread in my last post... There are some other pictures/videos from @looney2ns and others...