Indi,
Weekender is right about the 3-d unit, which operates on the same principle as various home-made units. They are great for bait hunting where you can conceal the backlight. I know of some guys putting a red filter over the LCD to keep the glow down and have less face illumination. For me, I hunt from inside a storage building make-shift cabin and the light is contained inside the building, so not a problem when using it like that. I haven't tried it out and about, calling etc., but Weekender apparently has and results were not positive. Perhaps the red filter might help with that.
This 3-d unit in your link has less clutter than my home-made unit, ie no wires dangling etc. and is more self-contained, but it operates much in the same way. The units (depending on which one you get) have pretty good resolution too. Below is an example of my home-build job that I mounted on a CZ .17 Remington. You can build the unit I have for around $250 or so, less the cost of an illuminator and 12-volt power source. For a cheap and effective system, it works pretty darn good for close ranges. 150 yards with a good illuminator should be OK, but closer is better.
Another consideration, if you can afford about $300 more, is the new ATN X-Sight 4k. I like mine very well so far and you can use it day or night, has onboard recording and an 18-hour rechargeable battery.
I have several examples on YouTube channel of home-made night vision. You can check them out if you are interested. My channel is: 6mm064
Here's one coyote I took with the unit.