I have had a Gen 1 3x12 - Gen 1 5x18 and a Gen 2 5x20 - The Gen 1 3x12 I loved because it was the first night visitation or digital scope I had owned. After joining the forum I learned a TON and became VERy knowledgeable about the X-Sight Lines. Then I upgraded to the 5x18 and it was a HUGE improvement, due to the BETTER clarity at higher zoom than my 3x12 was.
I then got the Gen 2 5x20 (after I became a dealer) and the improvements have been HUGE!
I will say as far as the quality control side, ATN misses the mark slightly, and they rely on their users to find the issues, and then a firmware updates comes out. That is the biggest CON I have. I will say they do a good job of fixing the bugs once they are found. (this is due mostly to the wide rage of features the scopes have, it is hard to effectively find all the bugs for each firmware update before it is released).
IF you get a used GEN 1 or a NEW Gen 2 I would highly recommend joining the facebook group for support, hacks, and modifications that will make it MUCH MUCH better.
https://www.facebook.com/groups/ATNXSightTexas/IF YOU DO GET ONE Here is a few things you should do before you put it on your rifle.
1. Buy a set of allen wrenches.
2. Loosed EVERY Screw you can find and put a drop of the BLUE Loctite Gel Glue on each one and then tighten it down HAND TIGHT without stripping the screws.
2a. Including the mounting screws to the scope mount on the bottom, and the tiny screws all around the scope.
3. Check for the latest firmware update and follow the instructions to download it to the scope. Message me if you need assistance.
4. There are a few more modifications to do as well but the facebook group will be good for that as well.
Below are some videos to watch as well.
ATN X-Sight II ALL Features tutorial
ATN X-SIght II Review
ATN X-SIGHT II 400 Yards
ATN X-SIGHT II Hog KILL