Hi Roger;
I've got one. The basic hardware platform is very nice. The software in the device feels like it was written by a fifteen year old wanna be hacker in his grandma's basement. Sorry to say... Apparently the vendor is working on that part of the problem and an update is supposedly "due any day now".
ATN is piss poor about actually answering any questions you forward to them through their web site. Generally their customer service seems spotty, some folks have good experiences others not so much.
The ATN Owners web site is apparently NOT affiliated with the company itself. There seems to be a core of experienced users hovering around over there and generally most problems get solved or "worked around" with little or no intervention by ATN itself.
I have some video on the youtube and there is plenty more out there.
https://www.youtube.com/channel/UCjS3KsyU8COIAzBw_9e-9ow This guy had the most informative and accurate videos that I found when researching the X-Sight on youtube, and I bought mine from him.
https://www.youtube.com/channel/UCSDP8zUL-kEqiz8u2bmuTRg The device puts me in mind of the military. It is a specialty bit of kit. It is active IR although the night vision capability would work without an IR illuminator in urban environments where there is more ambient light. The night vision isn't bad on moon lite nights in the country either. The darn thing is heavy compared to standard optics but then you aren't going to have HD video with record and audio plus night vision on standard optics. When you take that into consideration it is surprisingly light for what it can do.
I would go with a 3 x 14 (again) rather than a 5 x 20 simply because I am airgun oriented and find locating my target at close ranges difficult enough on the 3x device. Accuracy seems repeatable. I can remove the unit from my Condor and put it back and the zero remains where I left it. The ballistics calculator does it's job well enough that I can't see a difference but I haven't put the thing on a 100 yard bench yet.
Would I buy another one? No. Was it worth the money, a good value for the price? Yes for sure. In the end this device will be moved to my Winchester 670 or one of my Varmit powder burners... and I'll go back to a simple and light optic for my airguns.
The unit is something that you should have because you can use it to hunt in the dark. If that is your plan, the device delivers well on that promise.