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I have an Advantage Arms kit for the FS Glocks. Runs like a champ with Rem Golden Bullets (recommended by AA).
I have a Ciener kit for my 1911. Runs fine with all HV ammo I've thrown at it, but doesn't lock open on last shot (that's the way they are designed). I'm told Ciener is hit or miss and I lucked out!
Marvel is supposed to be competition quality and I know some folks that do serious bullseye competition with them and they love 'em.
I've got an Advantage Arms kit and put about 200 rounds down range. Bulk .22 LR is inherently less reliable than centerfire but it sure is fun and cheap to shoot. The kit works well and it's real easy to install, clean, and modify. One thing is for sure, .22LR kits will help you practice malfunction drills.
My son has an Advantage Arms kit for his Glock 17 and loves it. It locks the slide back after the last round is fired. I have a Tactical Solutions kit for my Colt 1911 and I like it better than my Kimber kit. The Kimber, like most 1911 kits, uses an aluminum slide, that won't lock back when the pistol is empty. The Tactical Solutions uses a steel slide. This makes the gun heavier and locks the slide back.