I just purchased one the other day, I am looking forward to trying it out.
I know that my "range report" will not count one bit compared to some of the reports that others will give (KevinB for example) but I have it, it looks nice, and I will put it through alot of rounds like I did with my ACOG.
My 553 is still my favorite optic though, perhaps I should have put my money into the 4x flip up... problem is that I like my sights in the back, the flip up forces me to put the sight up front.
Cheers,