I had one for a few years, it is a pretty neat scope to use. It's basically the same scope as a Razor HD with a computer inside it.
Very good optical quality, Tracking on mine was very good, Heads Up Display is pretty neat to see / use.
The only cons that I had with it were-
1. If you're not a computer geek, it is hard to set up. I had to buy a new tablet because my phone was too old to download the app. Then, I had to call Revic's tech line a few times to get help, but those guy's were great to talk with!
2. The weight. This is one heavy scope - 3 pounds.
3. Battery life isn't great, so make sure you carry extra AAA batteries
