I got to handle one at Sportsmans Warehouse today. I was definitely impressed. The emitter was definitely bigger and somewhat more annoying than I had hoped, but this definitely feels like a quality optic. I also did notice a bit of a slow dot refresh rate (like a flicker, at least compared to my PRO) when I turned the optic on, but my brain stopped noticing it after about 5 seconds. I think i will probably put one on top of my SBR build.
I also got to handle the Spitfire AR. I was incredibly impressed with the brightness of the optic, and the generous eye relief. The issue I have with it, however, was that I had trouble seeing the center dot of the reticle. The outer rings certainly help with the quick acquisition, but I found myself struggling to pick up the dot, even with the optic on. The outer rings can certainly be used to get a quick approximate aim up close, but I felt they were too big for me to comfortably snap off a quick shot at any sort of distance. But that may just be my eyes. YMMV.