I have this scope on my Accuarcy International AT. I'm setting up to shoot F-TR class and so far it's impressed me. For the money it seems well made and bright and clear out to 40X with good eye relief. SPORT OPTICS gave me a good price.
Everyone's different on opinions but speaking only for me I had Nightforce BR a couple years back and I prefer this scope over the Nightforce.
Not saying it's better but I had problems with my eyes seeing at 42x. Yes the Nightforce has slightly better glass but my Burris xtr ll not far off.
Like I said just my opinion.
Good luck