Over time, I've been through several small 9mm automatics - various Walther PPK and TPH pistols, two Glock minis, a Colt Mustang Pockelite, a Kimber Solo, and a Kahr PM9, not to mention any number of small-frame Colt, Ruger and S&W revolvers, trying to find something that (a) I can carry in a pocket holster without looking like a potato smuggler; (b) I can shoot comfortably and accurately; (c) has potential stopping-power that exceeds 380 ACP; and (d) is well made and reliable. SIG's P290RS is the best answer I've found.,so far.
As in the case of every SIG-Sauer pistol I've used, the P290RS is very well made and fitted from high-quality materials. It comes "broken-in" out of the box. The Siglite night sights are large and superb, some of the best I've used and they have the benefit of being installed in dovetails so front and back can each be drifted or removed and exchanged. That is not a small thing.
This pistols has digested every sort of 9mm round I've put through it with no failures to feed, fire, extract or eject - at all. That includes some fairly wide-mouthed defense rounds like the Federal Hydra-Shok. I've put about 400 rounds through it, so far, both 115 and 124 grain rounds, of both standard and Plus P velocities. I can't detect any material difference in accuracy between 115 and 124, just the typical changes in point of impact at target distances exceeding about 5 to 7 yards.
The trigger stroke is safely long but extremely smooth and feels more like 5 or 6 pounds than what the factory specifies, probably because the grip frame is thin enough to allow my trigger finger to pull at the "power crease" with good leverage. I don't have large hands. Those who do might want to exchange the factory installed polymer grip panels with the available wood or G-10 factory options. The trigger reset point is long but consistent. Shooters who like to ride the reset will need to adjust to it.
As for "concealability" - after carrying a Kahr PM9 for a while, there's little to no difference. Both are, to me, at the outer limit in size and weight of what can be reasonably carried in a pocket holster. They carry fairly easily in the side pocket of Docker's or loose-fit shorts but are too much for fitted jeans or narrow dress pants. In the latter two, or whenever seated-in-a-car access is indicated, the better method is a small, light Kydex belt holster. The paddle holster that comes with the pistol is adequate but rough on good clothing fabric.
Rating: 5 of 5 Stars!