I recently mounted one on my AMT Automag II and it nicely shrank the groups I had been getting with open sights. I have the similar Dr.Optic on my .357 Revolver and the also similar but cheaper Tasco Optima 2000 on my S&W 22A and I like them all. They are much better than a conventional red dot sight because they add only an ounce of weight and hardly any bulk to the gun. I have mine all mounted over the location of the original rear sight and the guns with sight mounted will still fit normal holsters, provided the leather is cut a bit low at the rear sight location. I attach the sight hood to the holster with a short leather thong so that it pops the hood off when the gun is drawn and the hood doesn't get lost. Unlike a scope or conventional red dot, it doesn't interfere with quick point shooting but does make shot placement more precise than open sights and there is nothing to turn on and adjust. Eye relief and field of view are both unlimited, all in all the best handgun sight I've ever seen.
As to the Burris specifically, my only complaint is that the dot is too bright. Where the Dr Optic shows a clean, round, adequately bright dot and the Taso a clean, round, not so bright dot, the Burris has a dazzling bright, ragged dot with lots of halo and "star-burst" around it. Still, it gave me good groups and so far has withstood the shock of being mounted on the slide of the .22 Mag auto. I would like to tone down the brightness a bit but don't know how that could be done. Zeroing the Burris was much easier than the Tasco which has pretty sloppy adjustments. It doesn't zero so easily as a good scope but does seem to hold its' zero once you get it dialed.
