I've had mine for, what, a week or so I guess. I shoot pretty much daily. I put it in my new Glock 17 Gen4 USA. As a disclaimer I must say that the gun came with a non-dipped extractor, and before firing it the first time I put in a White Sound Defense 20% extra power extractor depressor plunger spring, and a homemade spring loaded bearing designed to tension said spring even more. In this configuration the gun wasn't a problem. It ejected everything from WWB to Gold Dots and 2 power levels of handloads reliably and in the right direction. It would not eject without the magazine in place. When I installed the Apex extractor I noticed that after less than 300 rounds the extractor depressor plunger was showing wear from the slide at the front. I replaced it with one I made that has a longer front expanded portion and is much harder than the stock part. I put one of these homemade jobs in my G19 and it shows no wear at all after over 1000 rounds. I also switched out the White Sound Defense spring for the one supplied by Apex. First, I must say that the appearance of the Apex unit is head and shoulders above the Glock MIM part. Edges are precise, surfaces are clean, and the finish is very well done. It is a class item. I think, intuitively, that the claw edge being parallel with the inside of the slide, rather than at a 17 degree angle, is a very good idea, as the extractor is fully tensioned when it needs to be: when the spent case is at the ramped down position of the barrel. In shooting tests it is flawless. I actually loaded up some 115 grain ammo with the starting load of Bullseye powder, which makes for an even weaker load than WWB or REM/UMC, or any other ammo I've ever tried in any 9mm pistol. Weak loads seem to bring out the worst in some of the problem stock Glocks, so that was a test I wanted to do. I also tried it with stronger reloads, CCI Lawman, and Gold Dots. I forgot to try it with the magazine removed, but I'll add a post when I remember to do that. In several hundred rounds I have had no failures with the Apex extractor, and the cases have all gone in the same direction - up, out, and to the right at 4:00 o'clock or so. I kind of like shooting the weak loads, because I don't have to chase the brass as far. Since my gun wasn't a problem to begin with, was it worth the $67.00 with shipping? I think to me it was. I've been into all kinds of mechanical stuff for a long, long time. I have developed an appreciation for quality work. Also, with this part I know I don't have to worry about the extractor going South after 800, 1000, or 2000 rounds downrange. The only possible downside I must mention is that it is a non-LCI extractor. I don't care personally. I've never had a problem with knowing if the chamber is loaded. But, I can see some scumbag lawyer making an issue out of the fact that I have removed one of the gun's safety devices. In this case, that's a chance I'm willing to take.