I got nothing but good to say about this sight, anyone else use it? I got 1 in a trade set it up on My Alloy and it work's as advertised. I just got another one from Cabela's and put it on my MR5 and in 20 minutes I had it sighted in!!! I verified it out to 80 yard's because that's as far as I can shoot in My yard. I hope other sight maker's jump on the bandwagon.
Yes, I've used one since last year and have been super pleased with it, works great and it looks cool.
Not too sure about the one pin, but I have the React 5 pin and its a fantastic sight. 10 minutes after I started sighting it in I was shooting 50 yards.
i also agree this is a great sight, very easy to sight in. only drawback i see is the how bright the pin is during bright conditions. ive used electrical tape over the fiber wrap on the front of sight ring to cut the brightness down a bit. Other than that it is awesome.