First, I am not affiliated with Take Aim Technologies or Shot Tracker in any way. I am shooting regularly with a friend who has been using the Shot Tracker for about 4 weeks, when shooting sporting clays and skeet. He gets almost immediate feedback on his shots through electronic ear buds. When shooting sporting clays, he places an iPhone on the stand that he can review right after the shots, too. It collects a lot of data and is definitely helpful in learning where your misses are, distance to the clay and what the lead is. Sometimes, it does misread whether or not a target is broken and sometimes can’t “see“ the target. It averages 2-4 “misreads” per 100 targets. He has commented that the company is very responsive and guided him through the adjustment of setup parameters that has helped with this. One aspect I like is that you can mount it fairly close to the fore-end, minimizing the addition of “swing” weight to your barrels. Overall, I think it is a great product. Hope these comments help.