Shot about 200+ rounds through it. I was shooting a mix of 115 and 124 grain rounds and I had zero issues with feeding or extraction. I did however have problems with last round hold open, however I did some research and read that I have to possibly wear the slide release/lock in a bit. I spent about 5 minutes today after taking apart the gun just pushing the slide lock up and down as far as it would go. I then put the gun back together and the gun would hold open with a mag in it, so I will test it again soon.
I ended up getting the 6MOA dot instead. I wanted the 3, but my local store honoured the sale and only had the 6MOA so I jumped on it. I figured the 6moa dot would help me pick it up faster anyway and if I'm shooting competition I doubt I will be making 50+ yard shots where the dot would cover too much of the target. I mounted the dot tonight, it was very easy. Just some blue loctite and made sure not to over tighten the screws.
I had to max out the red dot adjustment down to get it just above my front post, now I have to sight it in at 25 yards.