Mounted the unit on my .22 Mutant with Bushnell Engage 4-16x44 scope last evening. It was dark, so I couldn't check out the daytime color performance yet.
Mounting was fairly easy, but the Ocular scope focus is critical. The Bushy has the "fast focus" eye bell, so it moves in and out quickly with just a turn or two. When I first installed the attachment ring, and then the NV007 unit, I couldn't get it to focus well without the "objective" focus on the NV007 being all the way towards infinity. Even then it wasn't as clear as it should have been. I took it off and backed off the scope's Ocular focus a half turn, reticle still in good focus, and reinstalled the unit. Now the unit's "objective" focus (the larger knob at the bottom of the unit) was able to focus the scope clearly and the NV007 focus ring now was in the middle of the range.
Note: you still need to use the AO feature of your scope to focus on the target. So, I ensured the back yard lights were off, and no light coming out the back windows. It was as dark as I could make it, which without a flashlight was very dark. I focused on a box target I have set up, which was 13 yards away (I have a small back yard in the city of San Diego). Without the IR light I could see the box, but it was dim, and grainy. I turned on the IR light and things got better. I set it to brightness level 2 and that improved the sight picture (level 3 did no better than level 2). However, when comparing it to my Night Owl, the picture was similar in brightness, but much more grainy. So on a whim, I turned off the NV007 IR light, and used the small 5W IR light that I use with my Night Owl. BINGO! Much improved sight picture and much less grainy-ness. Picture quality about the same as the Night Owl.
The unit has a magnification of approx. 1.5x, so when combined with the minimum power of my scope, which is 4x, the resulting image was 6x. For night shooting, this is probably as much magnification as you would want, maybe even a bit more than ideal for shooting rats at 15 to 50 yards. That's just speculation, since I haven't had it out hunting yet at night. I was planning on going this coming weekend, but the weather report calls for heavy rain all weekend. More to follow after I use it for night ratting, and for daytime squirrel hunt HD video.
So to better explain and not confuse anyone, when setting this up there are FOUR focus areas that need to be adjusted. Two on the NV007, and two on your scope. Obviously the ocular on your scope is probably already adjusted, but might need to be backed out a little in order to ensure there is enough adjustment of the objective focus of the NV007. The other scope focus is of course your AO, either side or front focus (this is done last of the four). The ocular on the NV007 is only to focus on the letters on the screen for status and menu choices. Once that is set, its good to go for that user, and doesn't need to be adjusted again. The objective focus on the NV007 is the lower recessed knob that is used to focus basically on the reticle in your scope. Once that is done, and the reticle is clear, then adjust the AO on your scope to focus on the target at whatever distance you are aiming. I learned this by trial end error, since its not really spelled out in the manual...