The 3AT is a get-off-me gun not for long distance shooting. But should I be forced to shoot past 15 feet in my urban area, I want a laser. I like the Armalaser for several reasons. ONE: I would not need to bring the pistol up and sight it in before pulling the trigger. The first shot, or two, into the BG can be done, as I've practiced, while bringing the gun up for a two handed well placed final shots. Time savings is about 1.0 to 1.5 seconds, would that matter to you? TWO: The 1.3 ounces under the front keeps the little bugger from jumping too much and I have better/faster/controlled groupings. Third: the "bulk" of the laser keeps it from being noticed, the printing, as a pistol. This is true in lightweight slacks and a windbreaker.
I don't use a holster, as this is a pocket pistol, but I do have the belt clip to keep it from sliding too deep into the pants pocket where lint collects. If, the BG is close enough then, I'm shooting through the pocket of the jacket, my usual carry place in the cold months. Too much time spent , and maybe a very noticeable action, if drawing from a holster when I need it NOW to live. Also a hip holster under a winter jacket is VERY awkward to access! I sometimes carry the Armalaser-3AT in my back pocket so if an armed robber wants my wallet, my hand is low as I go for the gun; low like I'm getting the wallet. A high hand around my back might advertise a draw from a holster and get me shot first.
The laser is tough, bright, and easy to sight in for beyond 15 feet. IMHO, You should be able to hit a torso 15 feet away with out a laser. I sight my laser for the longer shots.