It works great during the day and has an awesome FOV at night, but didn't work for me at distances over 100 yards even using a T67 illuminator. The picture was fuzzy in the viewfinder and the focus was extremely touchy. The Photon 4.6x is a much better setup if you don't mind the narrow FOV.
I also had to spend about 2 days reading through the forum learning all the tricks to make it work correctly (battery type, SD card type, settings, etc.) and I'm pretty skilled at tech type stuff.
I sent mine back after about a week messing with it.