I've got one. It's the best AR trigger I have ever felt. First stage is light with a definite wall. It can easily be staged and shot like a 2 lb. match trigger. You just have the advantage of the first stage if using gloves or wanting greater safety. If shooting rapid fire, you can pull through the first stage without even noticing anything except a smooth trigger.

I shot competition for years and know what a good trigger is. Stock AR triggers feel like 10 miles of gravel road even when polished compared to the SSA-E. I can't recommend it enough.